Powerflex BMW M2/M3/M4 Dual Mount Rear Differential Bracket (F80/F82/F83/F87)

Powerflex BMW M3/M4 Dual Mount Rear Differential Bracket replaces BMW’s factory single bush bracket that promotes excessive wear on the rear subframe-to-diff bush. This design is very flawed as is creates a pivot point for the diff under torque loading. With hard launch starts and sudden and frequent on-off throttle changes, this puts the single rear OE rubber bush through extreme torsional and directional forces, resulting in accelerated ageing with failure often seen at around the 30-40,000 mile mark

Powerflex has come up with a unique solution! To prevent an unsettled and clunky rear end, they developed this dual-mount rear differential bracket, made from in-house CNC machined 6082 high-tensile aluminium, designed to utilise the secondary mounting position on the OE subframe. The addition of a second bush, prevents the diff from twisting under load.

(See number ’30’ on diagram)

BENEFITS

– Reduced drivetrain movement
– Improved throttle response
– A more controlled & consistent on/off throttle chassis response
– Reduced wheel hop
– Reduced strain on bushes
– Corrosion-resistant