differential cover bushings available separately?

[0-60motorsports]

Visually it's clearly a different part, though perhaps for 01 cars it was different (the part was superseded in Mid 2000 and then again in 2002)

That part number comes up as the front diff bushing on the M3.....

I have been using E36 M3 bushes for the cover for years for a lot of M3s, No ones complained so far LOL.