BMW M2 M3 M4 Rear Diff Front Mounting Poly Bush Powerflex PFR5-4028
Rear Differential Front Mounting Bush Inserts x 1
BMW M2 F87 M3 F80 M4 F82
Palmersport helped with the development of these parts. They run a fleet of rental M3/M4's and have experienced these bushes failing causing the diff to move and knock. Their cars are used extremely hard so they discovered the problem very quickly but it is obvious that this will become a common problem on track cars or as they age. Solve the problem before it occurs or simply tighten up the diff location using POWERFLEX Bushing Inserts.
This part fits into voids in the original rubber bush OE number: 33177852495 and includes an aluminium support washer to provide stability to the diff under acceleration. For a replacement bush please use PFR5-4026.