BMS Differential Support Bracket Brace for G Chassis BMW/SupraThe Problem Hard launches, aggressive shifts, and high torque loads all expose a weakness in the factory rear differential mounting. Excessive differential movement leads to wheel hop, inconsistent launches, added stress on differential bearings, and a vague or unstable feeling from the rear of the car. Over time, that movement does more than hurt performance. It accelerates wear and compromises drivetrain reliability. Especially at higher power