Lifting your truck adds ground clearance and often more capability; but it also brings side effects. Among them are geometry changes in the suspension and in longitudinal engine configuration vehicles changes in the rear pinion angle. SuperPro's HD adjustable trailing arm sets allow you to correct the rear pinion angle while also upgrading the bushings for improved performance, durability and higher articulation all in a maintenance-free package. Worn bushings allow significant deflection and movement leading to slower responses, a sloppy drive, irregular and excessive tire wear and diminish every facet of the way your vehicle drives “ while contributing to driver frustration and fatigue. 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.