I am in need of a diff cover for my 1985 BMW E23 745i. The car is a euro grey market import and has a 210mm large case differential. American cars got the 188mm Medium case differential, and this won't work on my car.
The cover also doubles as a mount to hold the differential in place. Well... mine cracked, so I can't drive the car until I fix it.
If anyone (This goes double for you, resident vintage BMW enthusiasts) has a line on where to find a e23 large case diff cover, please let me know. Turner motorsports can't get one, and I imagine dealerships won't have any since its such an obscure part on this side of the ocean.
This is what the whole unit looks like. You can identify a large case over a small by looking at the flanges for the CV axles. The flanges bolt onto a medium case with 6 bolts, and a large case with 8. Both cv axles bolt to the flanges with 6 bolts.
This is the correct cover I need. As far as I know its 81-87 e23 big case specific. I'm pretty sure every euro car has the big case. It was the US spec cars that got the medium case.
Here are a couple shots of the two side by side
If anyone has any leads, let me know. I'd like to drive my car again.
Thanks in advance