034Motorsport | Rear Trailing Arm Spherical Kit (Audi/VW MQB)034Motorsport Rear Trailing Arm Spherical Kit (Audi VW MQB Platform) The 034Motorsport Rear Trailing Arm Spherical Bearing Upgrade Kit is designed to replace the factory rubber bushings, resulting in improved handling, and more predictable and precise cornering. Factory rubber rear trailing arm bushings deflect under load, causing the rear end to feel vague and loose, as well as leading to improper suspension geometry and increased understeer. This