SPF5210XK fits the inner position of the OEM rear upper camber link - 68253181AA (left) and 68253180AA (right) Control arm bushings form the vital pivot and link between all core suspension components. SuperPro's 'offset' bushing options allow you to fine tune camber adjustments at the front upper control arm without the significant cost of complete adjustable arms. Offering 1.5 to 2.0 of adjustment across the rear axle this kit allows you to fine tune your alignment to OEM or desired specifications or to compensate for a small suspension lift. Worn bushings allow significant deflection and movement leading to slower Reponses, a sloppy drive, irregular and excessive tire wear and diminish every facet of the way your vehicle drives. The wear is accelerated and the impact of worn bushings is even greater in upgraded trucks and SUVs where the higher weight and impact of items like larger wheels and tires all work the bushings harder. SuperPro's polyurethane bushings are the culmination of nearly 5 decades of suspension expertise and development in Australia's harshest terrain. Designed with durability as a paramount feature we also bring ride and passenger comfort to the forefront of our development. Your vehicle should treat you as well on the way to and from the trail as it performs on your adventure. Our designs and material compositions retain OEM levels of noise and harshness isolation while delivering superior performance and road manners in all conditions.