Quote:
Originally Posted by JamesM3M5
You need a large set of snap ring pliers to get the diff out of the newer cases (E9x, E6x, etc) because they no longer use 6 or 8-bolt side covers. The snap ring is ground to size (thickness) to set gear contact and preload, and they are extremely tough to get out. You must put the snap ring back in the same side you pulled it, since it's there for preload and gear contact pattern.
I do a lot of stuff here at the shop, but a diff is one of the things that I pay Dan at Diffsonline to do for me. I don't have the experience or patience to set gear contact and bearing preload, which is critical in making a diff run silently and not blow up.
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I know my dad has done a e90 before but I havent asked for his help yet. I guess I'll have to go to him on this one.