A set full for rear polyurethane differential mounts for Audi 100 C4 - street hardness.
Polyurethane bushings work ideally in performance suspensions. Rubber suspension bushings are a proven compromise in performance vehicles. When additional horsepower is added, plus size tires then OEM or rubber bushings tend to stress beyond design limits. Polyurethane bushings are strong enough to control movement and maintain wheel alignment.
This is a full set of red rear diff mount for rear of the car.