Quote:
Originally Posted by bcredliner
I have the differential cases with the gear sets in place so I can switch out, swap, the two 3.91 cases for front and back 4.10 cases without having to do any mods. The question is if anyone knows if they are interchangeable.
|
So you have two complete diffs, both front and back, in the ratio you want? I thought you wanted to swap ring gears and pinions, sorry.
I think it should work just fine other than your speedometer being off. Lots and lots of final drive swap threads over on bimmerforums.com. I bet you could find the details there. I’d love to know definitively too.