BMW Repair Questions? Ask a Mechanic for Answers ASAP
Hi I have a 2006 E53 3.0d, the rear diff has destroyed itself, the problem is locating another 3.91 ratio diff. My question is.....is it ok to change both the front and rear diff to a different ratio; say 3.64 which are both available? they are from a 2003 model, as far as I can see the only difference is the drive shaft flange which I can remove and replace with the one from my broken diff.