The compensator (Cush drive) was replaced and the car is now a pleasure to drive again. I have done 300 miles since and no signs go the drivetrain rattle. I am about to do a 2500 mile trip to Italy and back so hopefully it will not re occur.

2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports