This kit is used across a range of Triumph vehicles and in numerous locations depending on the specific model. Spitfire, GT6 & Herald models will find this kit used in both the front lower shock absorber mount and the rear strut/radius arm (2 kits are required to replace both locations) Stag models utilize these bushings as rack and pinion mounts (2 kits required) TR5 & TR6 models use this kit at the front lower shock mount Control arm bushings form the vital pivot and link between all core suspension components. 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. The wear is accelerated and the impact of worn bushings is even greater in vehicles with larger and or grippier tire packages and larger or heavier wheels, upgraded brakes, etc.. 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 and cabin isolation to the forefront of our development. Your vehicle should treat you as well on the way to and from the track as it performs on your daily commute. Our designs and material compositions retain OEM levels of noise and harshness isolation while delivering superior performance and road manners in all conditions.