News

A little more about the New JK Front Dana 44 Replacement Housing Read More
Part 7 of JK Long Arm Installation Read More
If you want to learn more about the different shock types and designs that are out there check out this article Dennis Wood wrote. Read More
Part 6 of JK Long Arm Installation Read More
Part 5 of JK Long Arm Installation Read More
Part 4 of JK Long Arm Installation Read More
Part 3 of JK Long Arm Installation Read More
Part 2 of JK Long Arm Installation Read More
Part 1 of JK Long Arm Installation Read More

Teraflex 2011 SEMA Show

Posted on 11/28/11 1:52 PM in Teraflex Video

Coverage of this years SEMA Show 2011 Read More

TeraFlex Speedbumps SEMA 2011

Posted on 11/17/11 3:39 PM in Teraflex Video

SEMA 2011 clip for Speedbumps Read More

TeraFlex Dana 44 SEMA 2011

Posted on 11/17/11 3:37 PM in Teraflex Video

Introduction to the TeraFlex JK Dana 44 Read More

SEMA 2011 TeraFlex JK Big Brake Kit

Posted on 11/15/11 8:32 AM in Teraflex Video

Big Brake Kit commercial used at SEMA Show 2011 Read More
Dennis shows us the installation of Exhaust Spacers for JK. Read More
Teraflex visits the Rubicon Trail August 2011 Read More

JK Rear Speedbump Installation

Posted on 10/5/11 9:58 AM in Teraflex Video

Dennis Wood shows how easy it is to install a pair of TeraFlex SpeedBumps Read More

Driveline Maintenance

Posted on 10/5/11 9:57 AM in Teraflex Video

Dennis shows us the process for maintaining your driveline. Read More

Steering Stabilizer Install

Posted on 9/23/11 8:06 AM in Teraflex Video

Dennis and Jenny show us how to install a Steering Stabilizer Read More

TerFlex Rebuild Swaybar Links

Posted on 8/29/11 11:18 AM in Teraflex Video

Dennis shows us how to rebuild Swaybar links. Read More
Looking for a Jeep? Check this out! Check out our Facebook page for more pictures. Read More

Teraflex Big Brake Install Part 1

Posted on 8/3/11 12:22 PM in Teraflex Video

Part one of the Big Brake Installation. Read More

TeraFlex Big Brake Kit Pt 2

Posted on 7/6/11 1:07 PM in Teraflex Video

Dennis and Jenny take you step by step installing the Teraflex Big Brake kit. Read More

Teraflex ALL Jeep Show

Posted on 7/6/11 1:04 PM in Teraflex Video

Overview of our TeraFlex ALL Jeep Show 2011. Read More

TeraFlex PreRunner shock review

Posted on 6/14/11 2:19 PM in Teraflex Video

TeraFlex PreRunner shocks reviewed by Paul Cox from FOX Racing Shox. Read More
If you entered our giveaway and didn't win check this out! We had to redraw because of lack of response from some of the winners. So you still have a chance! Read More
That's Right, Salt Lake's best off-road show is back again - June 4th, 2011! It will be at the Miller Motorsports Park again this year.
Off Road Course, RTI Ramp, Land Use Raffle, Trophies and More - Don't Miss it!
Read More
Product Installation Guide of the 2.5 Spring Lift with Shocks Read More
Video of TeraFlex's Family Day at Easter Jeep Safari Read More
We started Easter Jeep Safari off with a great day in Arches National Park. Read More
If you didn't get a chance to check out our booth at Safari this year, take a look at this video. Read More
Dennis & Curt take out the new 2011 TeraFlex PreRunner JK before it get's modified for some before and after comparision. Read More
Check out our commercial that played during Easter Jeep Safari 2011. Read More

Teraflex JK budget Boost Install

Posted on 4/11/11 3:56 PM in Teraflex Video

Teraflex shows how to install the 2.5" JK Budget Boost. Read More

JK Rear TrackBar Bracket Install

Posted on 4/5/11 8:31 AM in Teraflex Video

Dennis takes you through step by step on the installation of the JK Rear TrackBar Bracket. Read More

TeraFlex JK PreRunner 2.0 Part 2

Posted on 4/4/11 10:26 AM in Teraflex Video

Dennis and Curt take out the PreRunner 2.0 JK to see the difference in the stock vs. PreRunner version of the JK. Read More
This is the biggest giveaway Teraflex has had so you won't want to miss this! To help celebrate the 10th anniversary of making off road specific axles, TeraFlex will be giving away a brand new CRD60R for a Wrangler, Limited Slip with choice of gears, along with other prizes including; S/T Swaybar, pair of SpeedBumps, Budgetboost, Recovery Kit and Tow straps. Read More
Check out our Elka Shocks, prices have been reduced significantly. Set of 4 shocks used to be $1431.99 now only $943.99 Single shocks used to be $360.99 now only $234.99 Read More

JK PreRunner Crash

Posted on 3/15/11 8:46 AM in Teraflex Video

PreRunner's premature demise.

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Teraflex JK PreRunner 2.0 Part 1

Posted on 3/10/11 8:25 AM in Teraflex Video

Dennis & Curt take out the new 2011 TeraFlex PreRunner JK before it get's modified for some before and after comparision.

Read More

Your JK and You

Posted on 3/10/11 8:05 AM in Teraflex Video

Teraflex takes a brand new JK right off the dealer lot to see what it can do!

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If you've been looking for an easier way to order your TJ lift kit, look no more! We have created new TJ Kit numbers to simplify the process in ordering your TJ Lift Kits with shocks and Flex Arms. Check them out. Read More

We headed down to Moab and ran with Jim from Outlaw Jeep Tours/Farabee Jeep Rental for a head-to-head comparison of the LCG PreRunner vs a basic 2.5" kit. Check it out!

Read More
Check out our Winter Special. Good from now until February 28th, 2011. JK Upgrade kit that includes our most popular speed products. Fits all JKs with TeraFlex suspension systems with long or short arms. Read More
The TeraFlex JK LCG PreRunner Suspension system(1145042) combines all top-of-the-line components into a purpose-built speed system. The PreRunner system is designed to minimize unnecessary rotational mass, and maximize complete wheel travel. All of these may sound very similar to the already proven TeraFlex Elite LCG suspension system, but the PreRunner specifically focuses on the speed aspect of performance. The TeraFlex LCG PreRunner Suspension is designed for wide-open Baja inspired driving. For maximum performance 35” tires are recommended, with minimal curb weight (less than 4k lbs), and is designed for use with OEM axle housings (to allow maximum up travel). Read More

We headed down to Moab and ran with Jim from Outlaw Jeep Tours/Farabee Jeep Rental for a head-to-head comparison of the LCG PreRunner vs a basic 2.5" kit. Check it out!

Read More
TeraFlex_2011_Catalog_web-1 The 2011 Catalog is ready for your downloading pleasure! Hit the link to get your own 93-page digital copy of the most current TeraFlex components and product information!

Download it here

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Closed for Thanksgiving Holiday

Posted on 11/24/10 12:52 PM in Community News

We will be closed Thursday November 24th and Friday November 25th for the Thanksgiving Holiday. You can still submit orders and email questions, and we will see to them as soon as we can Monday November 29th. Thanks have a great weekend! Read More

We take you on a step-by-step install of the front TeraFlex Jeep TJ Speed Bump Bumpstops.

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We take you on a step-by-step install of the rear TeraFlex Jeep TJ Speed Bump Bumpstops.

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The TeraFlex JK LCG PreRunner suspension system is ready for some serious speed. How much speed? Check out the video to see...!

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TeraFlex - Sema 2010

Posted on 11/18/10 5:38 AM in Teraflex Video

SEMA 2010 was a great year for TeraFlex! We worked with some of the best custom Jeep builders out there. Watch some of the highlights of the show! Read More

TeraFlex Jeep JK Products Overview

Posted on 11/15/10 4:00 PM in Teraflex Video

Take an in depth look at Teraflex's JK Products. We offer high performance components and accessories for your Jeep JK Wrangler. Want a short arm suspension system? No problem! Want to upgrade to a long arm? No Problem! Need bumpers, sliders, and body protection? We've got you covered!

Read More

Part One of three videos. Dennis Wood shows us how to properly align a TJ with a Teraflex Lift Kit.

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Part Two of three videos. Dennis Wood shows us how to properly align a TJ with a Teraflex Lift Kit.

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Part Three of three videos. Dennis Wood shows us how to properly align a TJ with a Teraflex Lift Kit.

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TeraFlex SpeedBumps are an innovative composite bumpstop system designed for high-speed, high-performance JK Wrangler applications. The maintenance free, performance tuned microcellular polyurethane technology provides a simple installation with no further adjustment or tuning required for a lifetime of dedicated off road use.

Read More

TeraFlex Employee BBQ

Posted on 10/21/10 6:30 AM in Shows & Events News

In September we had our annual TeraFlex Employee BBQ. We took off work a little early and headed up the canyon for a BBQ and fun! Everyone that wants to brings their family and the bosses do the cooking. We enjoy spending time together away from the work place. We were so busy having fun with a raffle and prizes and eating great food, that we forgot to take pictures of all that fun.  Although, we did manage to capture a few pictures of all the employee Jeeps! So check them out.1 Read More

Ohana Trails Grand Opening

Posted on 10/21/10 6:20 AM in Shows & Events News

Aloha!  In September, Teraflex had the pleasure of attending a new store Grand Opening for Ohana Trails.  The new shop is located in Pearl City, Hawaii, which created a great opportunity for us to not only be a part of a celebration of Jeep awareness, but to have a uniquely tropical 4x4 experience ourselves. Read More

Nine-Day Brute

Posted on 10/12/10 1:54 AM in Editorial coverage

TeraFlex PRO LCG and CRD60R axle on this incredible bruteAdam Shoemaker of Unlimited Off Road Centers in Fenton, Michigan decided to build the most capable, and custom Jeep he could think of. JP Magazine - October 2008 Read More

How do I measure my Jeep’s FLEX?

Posted on 10/7/10 3:35 AM in FAQ

Flexing has always been the way we like to find out just who’s the best. So whether it’s muscles or a suspension system, whoever has the most flex wins. Now, I’m sure we’re all pretty familiar with flexing our muscles…but many times when comparing our Jeep flex with others, the question arises, “Who has the biggest flex?”…and not only that but how do you find out what the flex of your suspension system is in the first place? Hit the link to find out! Read More

Land Use & Clubs

Posted on 9/30/10 5:41 AM in Land Use & Clubs

TeraFlex supports many different organizations that act as your voice to keep 4×4 roads and trails open so that you can continue to enjoy four wheeling and the quality of life it provides you. Through these united efforts, the opinions and beliefs of four wheel enthusiasts are heard by land management agencies and elected officials. We encourage you to become a member of these organizations. Your membership provides you with priceless benefits of friendship and camaraderie, and it helps protect your rights for driving off-road.

Buyer's Guide

Posted on 9/30/10 5:38 AM in Buyer's Guide

Congratulations! You just bought a Jeep® and now you want to equip it for your favorite off-road adventure. How do you go about choosing the equipment and accessories that will help without draining the bank account? Many people build up their vehicle in stages as their skills improve over time. Others have owned many off-road equipped vehicles and know exactly how they want this one to perform and handle both on and off the highway. Follow along as we help you decide which TeraFlex products will give you the TeraFlex Advantage. Our primary focus at TeraFlex is the Jeep Wrangler although we do offer products for other models as well. Many of us depend on our Jeeps for daily transportation so they have to remain streetable as we go through the modifications to allow off road performance. We’ll start with the newest model and work our way back. 2007 to current JK Wrangler If you want to add a little personality to your new JK and run up to a 33 inch tire, the Budget Boost is a great way to go. Some folks call it the spacer lift, because the polyurethane spacers fit between the top of the spring and the upper spring seat on the vehicle frame. The spacers measure 2.5 inches, so when installed, your vehicle sits 2.5 inches over the stock height. The factory springs are retained along with all the control arms and track bars etc so the ride is changed very little from the factory showroom condition. We do include a rear trackbar drop bracket for the frame side to center the rear axle after installing the spacers. There are three flavors of the JK Budget Boost. They all work the same on both the 2 door and the 4 door model JK Wrangler. 1355200 is the most basic kit. It does not include shocks. If all you want to accomplish is a taller stance with slightly larger tires you can choose this option. The limitation will be in down travel or articulation with the factory shock being the limit to downward axle movement. This kit also should be your choice if you have a favorite brand of shock that you plan to use on your JK Wrangler. 1355210 includes all the components of the first kit but adds in a set of shock extensions or shock adapters that move the mounting point of the factory shock down by 2.5 inches to correspond with the spacers on the coil springs. This version allows maximum downward movement of the axle which translates into more articulation or wheel movement up and down when you are driving across uneven terrain. 1255200 is the most complete Budget Boost. It includes our vehicle specific, tuned TeraFlex shocks, specifically engineered for the JK Wrangler. This kit gives the same 2.5 inches of lift. One of the first things you will notice with any of the TeraFlex Budget Boost kits is our exclusive design on the rear coil spring spacer. The TeraFlex spacer is more than just a “donut” of polyurethane. It includes an industry first center tower that serves to center the coil spring during a wide range of motion. In some circumstances the JK rear coil spring will drop away from the upper spring seat during off road driving. The TeraFlex spacer has the center tower that guides the spring right back into the center of the spring seat as the axle moves up and down. The JK Wrangler is designed from the factory with a front rake. In other words the vehicle slopes down in the front, for aerodynamics. When adding accessories this slope can become exaggerated; again TeraFlex has the solution. We have a variety of spacers that can be added to the front spring to level or correct ride height after you add your favorite bumpers, racks and winch. 1953100 is a ½ inch spacer and 1953075 is a 1 inch thick front coil spacer.

Happy Customer

Posted on 9/30/10 5:34 AM in Testimonials

I ordered your 2.5″ Budget Boost lift for my 2008 Rubicon Unlimited. My wife and I installed it in our driveway on a Saturday. I found the kit to be very complete and the instructions to be understandable. The only install issue we had was the vent line to the rear axle needed to be extended a little. The jeep drives great after the lift with no bump steer issues or drive-ability problems. Great lift kit! I’ve noticed that it is the most popular lift for new JK’s. Jack Tuttle Read More

Coloring Book Pages

Posted on 9/30/10 5:04 AM in Community

Download custom coloring book pages for your Lil’ Jeepers to color! Pick from one of these awesome designs! + Instruction download extension

Lil' jeeper - Test

Posted on 9/30/10 4:51 AM in Lil' Jeepers Gallery

Some content goes here!

Lil' Jeepers

Posted on 9/30/10 4:15 AM in Community

Are you the proud parent of a Lil’ Jeeper, or a Lil’ Jeeper yourself?? Join in our Lil’ Jeeper fun where you can upload a picture of yourself doing what you love most, Jeeping of course! Plus you can play the awesome Dune Buggy Game from miniclip.com or print out custom coloring book pages with some Jeeps that you love!

Coloring Book Pages

Lil’ Jeepers Gallery

Lockers

Posted on 9/28/10 1:48 AM in 4x4 education Off Road 101

Lockers are devices that keep your wheels spinning even if you are losing traction. In most vehicles, when one tire begins to spin (lose traction), all of the power goes to making that tire spin to regain traction. A locker sends an equal distribution of power to both wheels on an axle.

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Tires

Posted on 9/28/10 1:47 AM in 4x4 education Off Road 101

Just as the right kind of tire is needed for snow, so is the right kind of tire needed for off-road performance. You want a tire that will grip onto slick rock and pull you through the most extreme obstacles. Choosing the right kind of tire and right size for your vehicle
is key to your off road performance.

Many factors play into tire size. The bigger the tire, the more ground clearance you have, but not without risking your center of gravity.

The center of gravity is the center position of balance for a vehicle, or the average location of a vehicle weight. A low center of gravity allows a vehicle to not only side hill well, but increases the angle that a vehicle can climb and descend.

Tire size is also affected by how high off the ground your vehicle is. When a lift kit is installed, you may choose to run a bigger tire size. Suspension also plays a role in which size tires will fit and which will hit. By understanding your whole vehicle- suspension, flex, body,etc.- you can make a good choice in tire size.

Tires

Suspension

Posted on 9/28/10 1:45 AM in 4x4 education Off Road 101

The suspension on your vehicle determines how well your vehicle flexes and moves when you are off-road. Suspensions can be soft or hard and can even lift your vehicle higher off the ground. A good suspension system will improve your off-road performance while maintaining a quality highway ride.

Read More

Low Range

Posted on 9/28/10 1:44 AM in 4x4 education Off Road 101

When riding a mountain bike up a hill it is always easier to gear down, or you will run out of energy. This is the same concept with your vehicle. Low range is implemented to help you gear down and make good use of your engine power to help you over those steep hills, and to save your brakes when going downhill. Low range keeps your tires spinning at a slow pace with lots of power behind it. It can hold your engine back without constantly riding the brakes.

TeraFlex Low Range gear conversion products can increase your low range crawl ratio by as much as 50%, resulting in improved off road control and performance.

Rockcrawling with the TeraLow gives you the advantage of being able to start your engine on very steep inclines without using your clutch and with automatics compression braking is improved when coming down a hill.

The key benefit of TeraLow conversion kits is that they improve gearing for off-roading without sacrificing the high-range gearing for highway driving.

Because TeraLow transfer case conversions are designed to be used in the vehicle’s native applicaiton, there is much less labor expense involved when compared to other gearing options. In addition stock driveshafts can be used with most applicaitons.

The TeraLow Low231 and the Low300 provide about 50 percent more reduction than stock. The 4.0:1 ratio means that, in low range, your Jeep will move four times slower than it does in high range.

The TeraFlex 2Low kit provides the benefit of true low range gearing, while allowing the front to freely turn. It lets you choose 2 Low in addition to the other standard options. The 2 Low kit will eliminate drive train bind and most of your three-point turns. This kit is completely internal and does not require any external modifications. Disassembly of the transfer case is required for installation.

LOW RANGE CRAWL RATIOS

Trying to figure your final low range crawl ratio can sometimes become difficult. There is a zone that is ideal for rock crawling and other off-roading. Generally, a crawl ratio between 50:1 and 75:1 works well in high-traction terrain.

Crawl ratios are calculated by multiplying the axle ratio by the transmissions first gear ratio by the transfer case low range ratio. This gives you the final crawl ratio. Generally a final crawl ratio of 50.0:1 to 100.0:1 is a good off-road crawl ratio. This chart shows improved gear reduction
behefits of the TeraFlex Low231 case.

To find your crawl ratio, use this simple formula (refer to the chart). Multiply the first gear ratio by the transfer case ratio. Multiply that number by the axle ratio (of the ring and pinion) to get your crawl ratio.

Low-Range

Axles

Posted on 9/28/10 1:44 AM in Off Road 101

The completed assembly of differential, shafts, bearings and seals necessary to transfer power from the driveshaft to the wheels.

Axles are the closest component of your vehicle to the ground, therefore they take the most abuse. As you go through rough terrain and bounce on rocks, etc., your axle takes the heat. Breaking an axle is the last thing you want to do because it can leave you stranded with no power being transferred to your wheels. If you plan on having a dependable four wheel drive vehicle, that will take you where no stock vehicle can, it is important that you understand the functions of your vehicle and it’s components. A strong axle is a good way to begin upgrading your vehicle. Remember to research what works best for you and your vehicle before making a decision.

As vehicles become more capable and trails become more challenging, the need for improved performance and increased strength becomes even more important. That is the primary reason why customers demand high performance parts and components from TeraFlex. The improvements to our axles sent the competition reeling. We wanted to provide an extreme axle for Jeep sized vehicles that would handle the abuse regularly thrown at them.

In addition to that, we engineered a Constant Radius Deisgn (CRD) smooth bottom, which provides improved strength, and increased ground clearance that is virtually unaffected by pinion angle. Its design forced the competition to follow, because of the innovative features that the design provides.

To achieve this constant radius design, the axle cover line is rotated 20 degrees on the CRD50 end- 35 degrees on the CRD60 end. This provides two immediate advantages. It maximizes ground clearance when used with a higher pinion angle, and also keeps the differential cover from coming in contact with any potential obstacles ensuring that all differential components are protected.

Tera axles have been tested by the toughest rockcrawlers in the industry and have proven themselves to be the axle that can be trusted in the heat of competition, or on the trail. Tera CRD60R axles are the first true innovation in the axle industry in over 30 years. They are engineered and designed to maximize protection, performance and durability.

Axles.pdf

2WD
2WD is the normal transfer case position selected when driving on the street and highway.

2WD Low
2WD Low is an optional low range kit for the NVG 231 transfer case that disconnects the front drive output inside the transfer case offering the slow control of 4WD Low with the turning capabilities of 2WD. This is particularly useful when on tight trails that have limited turning radiuses.

4WD High
4WD High can be selected for all wheel traction at higher speeds (20-45 mph).

4WD Low
4WD Low is selected for slow moving traction and control. This is the gear generally selected for trail driving and rock crawling.

ABS
Anti-Lock Brake System is a factory installed option on many vehicle which uses wheel rotation sensors to provide input to the vehicle computer and a control box. The system is designed to prevent wheel lockup during panic stops and when slowing down on slick surfaces.

Air Down
To lower the air pressure in the tires to improve off-road traction.

Anti Sway Bar
The anti sway bar (commonly referred to as ‘sway bar’) prevents body roll and keeps the vehicle from swaying back and forth at highway speeds, this gives car-like handling characteristics. When off-road the sway bars will reduce articulation unless they are disconnected

Approach Angle
When viewed from the side of the vehicle, this is the angle between the ground an a line running directly to the lowest hanging part on your vehicle (usually the front bumper). This is the maximum angle that a vehicle can climb without hitting the front bumper or other component.

Articulation
Articulation refers to suspension flexibility that allows the vehicle tires to remain in contact with the ground while driving over uneven terrain.

Axle
The completed assembly of differential, shafts, bearings and seals necessary to transfer power from the driveshaft to the wheels.

Ball Joint
Ball joints mount the steering knuckle to the axle assembly inner C-Yoke, or to the IFS control arms. Ball joints allow the knuckle to pivot when steering the vehicle.

Back Spacing
The measured amount in inches from the inside mounting surface of the wheel to the inside lip of the wheel. Less backspacing means the wheel will stick out further from the vehicle.

Budget Boost
An economical way to lift your vehicle by using spring spacers or shackles.

Bump steer
Bump steer is when a vehicle pulls or shoots off to one direction as the suspension is compressed or extended (when going over bumps in the road).

Cat/Catalytic Converter
An emissions control unit in the exhaust system that helps to reduce harmful vehicle emissions.

CB Radio
Citizen’s band radio allows an easy and inexpensive way to contact other vehicles when off-roading or in a convoy. They help to keep groups together and can be used to call out for help in emergencies.

Center of Gravity
The center position of balance of the vehicle from front to back and from the ground to its highest point. A lower center of gravity increases vehicle stability.

C-clip
The C-clip is used in Dana 35 and Chrysler 8.25” rear axles. The C-Clip is a retaining clip that holds the axle shaft into the differential carrier inside the axle housing. If the C-clip breaks or the shaft breaks, the axle shaft will be able to slide out of the vehicle. This can be very dangerous in off-road situations that are off camber, or vertical.

CJ
The CJ was the original open top four wheel drive vehicle capable of traversing just about any terrain imaginable. It first was introduced to the civilian market in 1945 and went through several model changes, some of which are the CJ-2A, CJ-5, CJ-7 and CJ-8. The last CJ model was produced in 1986 when it was replaced by the YJ Wrangler.

Coil Springs
An alternative to leaf springs for achieving desired vehicle height. Coil springs consist of multiple wraps of steel wire of a specific load rating.

Control Arm
The control arm is what holds the axle underneath the vehicle and keeps it located correctly under torque.

Crawl Ratio
The final low range ratio of your vehicle in 4WD low. This can be found by multiplying the transmission first gear ratio, transfer case low range ratio, and the axle ring & pinion ratio.

Curb Weight
The actual weight of a vehicle when loaded with fuel, driver, and passengers.

CV Drive Shaft
A common term used to describe a driveshaft with a double cardan joint to reduce vibration at steeper driveshaft angles on lifted vehicles.

Departure Angle
When viewed from the side of the vehicle, this is the angle between the ground and a line running directly to the lowest hanging part on your vehicle (usually the rear bumper). This is the maximum angle that a vehicle can descend without hitting the rear bumper or other component.

Differential
The differential transfers power from the driveshaft, through the axle shafts to the wheels. There are many different types of differentials such as; open, limited-slip, locking, etc. See Locker and Open Differential for more details.

DOM
DOM is the abbreviated name given to a specific type of steel tubing. Drawn Over Mandrel refers to the process that is used to manufacture the tubing. DOM tubing has superior strength and dependability characteristics compared to other types of tubing; specifically DOM is seamless.

DOT Approved
The Department Of Transportation must approve certain safety features of products (such as brake lines) if they are to be used legally on US streets and highways.

Drag Link
The drag link connects the pitman arm to the steering knuckle and enables the vehicle to turn via the steering wheel.

Drivability
This refers to a vehicle’s ability to drive under certain conditions, such as highway, off-road, gravel, dirt, etc. The main issues that are pertinent to drivability are: handling, steering, and ride quality. Depending on the modification, some aspects of drivability will be altered.

Driveshaft
The driveshaft transfers power from the transfer case to the axles.

Driveshaft Angle
The driveshaft angle is the angle that a driveshaft must be at to connect the transfer case to the axle. On lifted, short wheel base vehicles (SWB) the driveshaft angle can often be quite severe.

Full Float
An axle design where the vehicle weight is supported by a spindle and wheel bearing assembly. The axle shaft is used only to transmit power to the wheel through a drive flange or lockout hub assembly.

GVWR
Gross Vehicle Weight Rating is the maximum amount that the vehicle can weigh with full fuel, passengers and gear. This number is provided by the vehicle manufacturer and must not be exceeded.

High Center
High centering happens when all four wheels are off the ground and the vehicle is resting on its center skid plate. A high clearance skid plate like the TeraFlex BellyUP can help to reduce this problem.

High Pinion Axle
A high pinion axle housing design has the pinion shaft entering the housing above the axle tube centerline. The ring and pinion gear teeth are cut in the opposite direction to allow this relocation of the pinion shaft entry point. Sometimes this axle is mistakenly called a “reverse rotation” axle but this is not correct. The ring and pinion still rotate in the same direction but the tooth pattern is reverse cut allowing the driving force to be carried on the stronger side of the ring gear teeth when a high pinion axle is used in the front of a 4 wheel drive vehicle. When used in the rear of a 4 wheel drive vehicle some strength is lost since the driving force is applied to the weaker side of the ring gear teeth. For this reason many people choose to install a Heavy Duty 60 series axle such as the Tera CRD 60 in the rear of a light weight vehicle.

IFS
Independent Front Suspension refers to a vehicle suspension design where the front knuckles mount to the frame through ball joints and some type of upper and lower A-arms. This design allows either side to travel up and down independent of the opposite side. IFS has been used for many years in cars, and is now common in 4 wheel drive vehicles.

JK
The JK Wrangler has been produced since 2007. It features coil springs and replaced the TJ Wrangler. For the first time in Wrangler history, it comes in a four door model as well as a two door model.

KJ
The KJ Liberty has been produced since 2002. It was the first Jeep® vehicle to use an independent front suspension.

Knuckle
The knuckle connects the wheel assembly to the axle housing inner knuckle or C-Yoke through 2 pivot points and creates a mounting point for axle components such as tie rods, unibearings or hubs, brakes, etc.

LCA
The lower control arm is a suspension component that connects the axle to the frame of the vehicle. These can be lengthened and shortened to fine tune alignment and pinion angle.

LCG
Low Center of Gravity.

Leaf Spring
The most traditional suspension design until the mid 1990’s. Leaf springs utilize an arched steel strap that is heat treated and combined into a multiple leaf pack to give the vehicle its intended height. Leaf springs are very stable and offer a relatively stiff ride.

Locker
A locking differential provides equal torque to the vehicle’s wheels by forcing both axles to turn at the same speed. A selectable locker like the TeraFlex T-Locker can be turned on or off with a switch and allows open differential driving while on the road, and a locked differential when off-roading.

Long Arm
Lower long arms increase the arm length by almost double in most cases, and will provide the vehicle with increased on road drivability and off road articulation.

LWB
Long Wheel Base vehicles generally have over 100” of wheelbase. This includes the Cherokee, and Grand Cherokee.

Nodular Iron
Nodular Iron (Ductile) is a cast iron that has been treated while molten with an element such as magnesium or cerium to induce the formation of free graphite as nodules, which imparts a measurable degree of ductility to the cast metal. Nodular iron is commonly used in casting automotive differential housings.

OEM
Original Equipment Manufacturer is the supplier of equipment that came stock on a vehicle or was specified by the factory for production vehicles.

Open Differential
An open differential allows different wheel speeds for smooth turns on high traction surfaces. This is great for driving on the road, but in low traction situations the open differential allows all vehicle torque to be transmitted to the wheel with the least amount of traction.

Off Road articles

Posted on 9/28/10 1:27 AM in 4x4 education

 Off Road 101 articles

Lockers

Lockers are devices that keep your wheels spinning even if you are losing traction. In most vehicles, when one tire begins to spin (lose traction), all of the power goes to making that tire spin to regain traction. A locker…

Tires

Just as the right kind of tire is needed for snow, so is the right kind of tire needed for off-road performance. You want a tire that will grip onto slick rock and pull you through the most extreme obstacles.…

Suspension

The suspension on your vehicle determines how well your vehicle flexes and moves when you are off-road. Suspensions can be soft or hard and can even lift your vehicle higher off the ground. A good suspension system will improve your…

Low Range

When riding a mountain bike up a hill it is always easier to gear down, or you will run out of energy. This is the same concept with your vehicle. Low range is implemented to help you gear down and…

Axles

Axles are the closest component of your vehicle to the ground, therefore they take the most abuse. As you go through rough terrain and bounce on rocks, etc., your axle takes the heat. Breaking an axle is the last thing you want to do because it can leave you stranded with no power being transfered to your wheels. If you plan on having a dependable four wheel drive vehicle, that will take you where no stock vehicle can, it is important that you understand the functions of your vehicle and it’s components. A strong axle is a good way to begin upgrading your vehicle. Remember to research what works best for you and your vehicle before making a decision.

Moab Easter Jeep Safari 2010!

Posted on 9/8/10 12:28 AM in News

TeraFlex MoabThe Moab for the 2010 Easter Jeep Safari rocked! We got the chance to get to know some pretty awesome people that stopped by the booth on Thursday and Friday. Aside from that we tried to get in a few trails runs of our own...Thanks to everyone who entered the raffle for the free TeraFlex Diff cover and for all those who took the time to stop by our display and say hello! We look forward to seeing you all again next year, hit the link for some pics of the booth and of our trail runs over the weekend -

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TeraFlex_3rd_seatbracket_kit_4934200

The TeraFlex 3rd Seat Bracket Kit is an innovative seat bracket kit that allows JK Unlimited owners the ability to add a 3rd row seat for additional seating. This innovative seat bracket kit allows the use of a JK 2 door rear bench seat, and retains the ability to keep the fold-and-tumble functionality. The seat can also be mounted in standard front-facing or rear-facing. Hit the link for more details!

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img_6883This past week we made our way down to Moab, UT for the chance to meet up with a group from the FMCA (Family Motor Coach Association). We spent time on the trails and back at basecamp which happened to be Portal RV Resort, operated by our good friends Doug and Steve. Over the course of the week we had a blast! Hit the link for the summary of the events as well as some great pictures from the trail runs! Read More
Hot off the presses, the 2010 TeraFlex Product guide has finally arrived!  Hit the link to download your copy today and be the first to see some hot new items on our Spring 2010 line up!

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A couple of our guys just got back from a fun-filled adventure down to the annual Tierra del Sol trailrun!  While they were down there they headed over to Mexico to check out the San Felipe area.  Luckily they took a few great pictures to make the rest of us jealous, hit the link to take a look!

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We recently found out that Fox sent us a quite a few extra front adjustable shocks for the JK Wrangler.  We need to move this inventory as quickly as possible, so what better than to put them on sale for a ridiculously low price?  Ya, we thought it was a good idea too!

 

The prices are so low, we can't even show them on our website, so call in or email to get your pricing!  This is a limited time offer while supplies last.

 

Click here to check out more information

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TeraFlex 2010 Moab Test and Tune!

Posted on 2/15/10 4:00 PM in Community News

When new products come off the line here at TeraFlex, we're just like little kids on Christmas Day! So you can only imagine our excitement when we recently had the chance to test out some of our prototypes down in Moab. As most of you already know, TeraFlex products go through some rigorous testing phases before they're released to the market to make sure even the smallest piece of equipment is completely fine-tuned and perfected by the time it gets installed on your Jeep. We take the time fixing the bugs so you don't have to! Hit the link to see some sweet photos of the run!

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JK S/T Swaybar BLOWOUT!

Posted on 2/1/10 4:00 PM in Community News

To make way for new inventory, we've slashed prices on our current stock of JK S/T Swaybars! Now's your chance to grab one before they're gone, over 50% off while supplies last! Hit the links below for your lift height - JK Wrangler with 0"-3" Lift JK Wrangler with 4"+ Lift

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Dennis Wood - Army Green JK

Posted on 1/21/10 4:00 PM in Build-ups

Army Green JK HemiDennis Wood has one sweet build up, as many of you know. Since his Jeep is loaded with so much of our product, plus the fact that he's a long time employee of TeraFlex, we figured it was time for him to get his own build-up! He gets a lot of questions about what he's installed on his Jeep and what a certain product he has looks like, so to make it a little more simple we've got some detailed shots of pretty much everything there is to see on his JK...Take a look! Read More

This sweet video will give you a taste of what these amazing bump stops are capable of! So sit back, relax, and watch a little TeraFlex Magic!

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How do I measure my Jeep's FLEX?

Posted on 12/16/09 4:00 PM in Community News

Flexing has always been the way we like to find out just who's the best. So whether it's muscles or a suspension system, whoever has the most flex wins. Now, I'm sure we're all pretty familiar with flexing our muscles...but many times when comparing our Jeep flex with others, the question arises, "Who has the biggest flex?"...and not only that but how do you find out what the flex of your suspension system is in the first place? Hit the link to find out!

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We Support our TROOPS!

Posted on 11/19/09 4:00 PM in Community News

TeraFlex would like to give a shout out to all of our great troops serving in the armed forces, here and overseas. We really appreciate everything you do for us, much of which goes unnoticed. Recently, we've had some contact with Timothy Hughes and his battalion whom are currently serving in Afghanistan. Timothy is a member of the 4th Special Troops Battalion, 4th Infantry Brigade Combat Team, 4th Infantry Division (ya we know, lots of fourths). The group picture to the left is of the Battalion Personal Security Detail. Man, they always give these guys the coolest titles don't they? The Battalion is based out of Ft. Carson, CO.

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The best of SEMA 2009

Posted on 11/10/09 4:00 PM in Community News

Once again, SEMA has come and gone, and once again we had a great time!  The floor was literally flooded with dozens of awesome booths, dealers, and other enthusiasts.  There was quite a turn out at our booth, and we’re grateful to all the many dealers that showed up to give us their support!

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elka-shocks.jpgTeraFlex and Elka Suspensions have teamed up to bring you the first ever Elka JK - Specific Performance Shocks! Elka quality and TeraFlex fine tuning make these shocks perfect for anyone who's looking for top of the line high-performance shocks to add to your suspension system. This is the first time ever Elka has produced after market accessories for Jeeps. We're way excited about it and hope to see more great products coming our way in the future! Shocks are available in pairs or sets of 4. Following is some general info about what you can expect -->

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TeraFlex 2009 SEMA JK

Posted on 10/21/09 5:00 PM in Build-ups

TeraFlex JK at SemaFor SEMA 2009, we overhauled a brand new 2009 2-Door Jeep Wrangler to put on display at our booth. The goal of this build up was to show off some brand new products we'll be debuting in the coming year, as well as try to find a good balance between performance, economy, and design. Burnsville Offroad graciously accepted the challenge to custom-build the JK to the best specs possible, and it was quite a challenge. Luckily these guys have been in the business for a while so they made putting this design together look like a piece of cake. Check out the specs of the rig, as well as some awesome shots of the build up as it progressed, and some pictures of the final product in the booth at SEMA 2009. Enjoy.

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With a Jeep, it's all about the image! Here at TeraFlex we spend coutless amounts of hours shooting pictures of tons of different Jeeps for our magazines, the internet, and well sometimes just because we feel like it. With that being said, we felt like it was time to let all of our fellow off-road enthusiasts in on a few little secrets on how to take quality pictures of your rigs. 

The way you take photos of your Jeep can make or break you in the world of media, and in this age of uploading pics to your favorite social networking account while on the trail, why not take an extra second or two to capture some shots that will make all your Facebook friends drool? This article includes a few tips on how, as well as some good (and bad) examples of some shots we've taken over the past little while...

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PortalRV TeraFlex JKDoug Sorensen, owner of PortalRV Resort and Park City RV Resort, and long time friend of TeraFlex, has spent quite a lot of time building up his flagship JK. His rig of choice is none other than a 4-door 2007 Wrangler Unlimited Rubicon. His build up is definitely one of a kind, and so is the paint job! Here you'll get the scoop on what he's sporting underneath his JK as well as some great pics of the Jeep...Take a look and get some ideas for your own build up!

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If you live anywhere near where we do, we're sure you've noticed winter has already come! Freezing weather, huge mounds of snow, and lots of ice. And it's here to stay! So, while your busy putting up your holiday decorations, buying presents, or whatever it is you like to do during this time of year, we want to drop a quick reminder on some basic preparations you should take to assure your Jeep enjoys the season just as much as you do!

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TeraFlex SpeedBumps BumpstopsTeraFlex SpeedBumps are an innovative composite bumpstop system designed for high-speed, high-performance JK Wrangler applications....

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Dan Mick 2008 JK FlexWhat do you get when you combine intense Moab slickrock, a seasoned Moab Jeeper, and a souped-up TeraFlex outfitted 4 door JK with a Hemi swap? The answer: Dan Mick's Guided Jeep Tours! Dan Mick has been a loyal customer for many years and currently is being sponsored by TeraFlex. A few days ago our TeraFlex crew followed Dan on a guided tour up Hell's Revenge, an intense 4x4 trail just outside of Moab, UT. While there we got the low down on Dan's new 4 door JK, as well as some awesome pictures to bring back home! Here's the highlights...

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2007 JK Wrangler XThis 2007 JK Wrangler X; driven by long time TeraFlex customer Dave Storrs, has a very unique story behind it. A story that begins underwater in the middle of a lake! That's right, this awesome JK was a lake rescue, bought by Dave shortly after. With the help of TeraFlex, Dave's been able to revive the Jeep and now it's better than ever- He's put a lot of work into this rig and we thought this story was too good to be kept a secret…

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Teraflex LCG Pro Suspension System - Bigger Tires Without the Nosebleed Installing Teraflex's LCG Pro Suspension System 4Wheel Drive & Sport Utility Magazine - Dec. 2006 Read More
TeraFlex Adventure Prospector - The perfect Jeep

2006 Jeep Wrangler Unlimited - Adventure Prospector

Could This Be the Perfect All-Around Jeep?

4Wheel Drive & Sport Utility Magazine - June 2008

 

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The TeraFlex CRD60R is the original & industry leading aftermarket high pinion Dana 60 axle. TeraFlex expands their axle line with a JK specific rear axle to answer the needs of a heavy duty rear axle application. The JK rear CRD60R will retain the use of the factory ABS and ESP sensors to maintain factory computer communication, and drivability. The axle comes complete with 35 spline semi-float axle shafts, R&P ratios up to 5.38, locker of choice, JK specific CNC bracketry and TeraFlex heavy duty cast cover. The factory brake system is retained for simplicity.

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Orange Crush at SEMA 2008

Posted on 10/6/08 5:00 PM in Editorial coverage

We are back from SEMA, and what an awesome show it was! A BIG thanks to COP4x4 and Their Orange Crush! - This Jeep rocked!

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The HD forged front flip draglink has been designed to solve several front end issues with lifted JK Wranglers. The new draglink is 'flipped' over the knuckle, and uses a new tapered insert to mount the draglink into the knuckle. The HD draglink is 50% stronger than the factory draglink to hep eliminate front end shimmy and other alignment issues.

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2005 TeraFlex TJ w/ HemiOne great thing about TeraFlex is that our employees are also our customers. Take our Vice President, Jeff Mock, for example. Jeff's 2005 Unlimited has had quite a few TeraFlex overhauls in it's short life time. From suspension systems to tires and wheels, even a HEMI engine. Take a look at some specs that are sure to make your mouth water...

Starting out, Jeff's TJ was suped-up with a 5.7 Liter Hemi conversion and a 545RFE double overdrive 5 speed A/T. As you can imagine it goes a little bit faster than it did stock...

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JK Wrangler Rubicon 2Low

Posted on 8/12/08 5:00 PM in Press releases

TeraFlex JK Wrangler Rubicon 2Low 241-OR

The TeraFlex JK Wrangler 241-OR 2WD Low Range Kit adds an additional low range option to your arsenal

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