Our Grade 12.9 E46 M3 Differential Mount Bolt is a replacement for the OEM Grade 10.9 Part # 33177840535.
The common issues with the E46 M3 differential bolt include;
- Zinc-flake finish has started to corrode
- Years of driving has worn the rubber bushing and now the bolt is allowing the differential to clunk (no longer tight enough)
- After removing the bolt to take out the differential, the threads in he bolt (or worse, the differential) are damaged
Important tips when working on the differential;
