Changing your ring and pinion ratio and/or tire size will cause an inaccurate reading of your speedometer. Replacement of the speedometer gear is a simple procedure that takes minutes to complete. The chart below lists ring and pinion ratios and tire size. Simply select the proper configuration of your vehicle from the chart.
An accurate speedometer reading is important both on and off road when detailing travel routes and for on highway safety.
* speedo gears with the ‘L’ designation cannot be used in the TJ 231 transfer case. The L-type gears are for use in the YJs 231 transfer case.
