Land Rover Defender Defender (2002 - 2016) Rear Radius Arm Front Bush - PFR32-111 During testing of the original rubber bushes, it was discovered that the resting position of the vehicle forces the bush into a stressed angle that leads to premature failure and uneven spring rate characteristics through the suspension travel. PFR32-111 has been engineered to align the radius arm with a 3.5 degrees static angle of the radius arm to allow neutral articulation for improved performance and longevity. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!