The JK rear axle bracket kit is designed for new axle applications that will be installed in JK vehicles. The heavy duty bracketry is CNC cut from 1/4” steel, and precision bent. The HD lower control arm & shock mount also features a skid plate to prevent shock damage and keep you from hanging up on obstacles. The Flex- Arm bracketry also allows multiple mounting locations for fine tuning suspension geometry. The trackbar features multiple mounting locations as well to fine tune rear roll center. Sold as a complete kit, raw steel ready for paint or powder coating. Kit Contains; COMPONENT # DESCRIPTION QTY 3990060 Bumpstop pad 2ea. 3990070 Coil spring pad 2ea. 3990091 LH lower arm mount 1ea. 3990090 RH lower arm mount 1ea. 3990080 Trackbar axle mount 1ea. 3990051 LH Upper arm mount 1ea. 3990050 RH upper arm mount 1ea. 600270 Spring Retainer 2ea. (Not pictured)