Been putting this one off. I searched but did not really get the info on what is needed.

I plan to open and replace the gear oil in the diff. While in there I will rotate the shafts to opposite sides if they are not too worn yet.

What I really need is more or less a shopping list. But I do not have all part numbers. If anyone has those, it would be a big help when ordering.

I ordered two shaft boots. Just going to assume they are going to fail soon. Two side cover seals for the casing (think they are o-rings).

What I need is to know if there is a gasket for the cover or if its just RV sealed type stuff. A part number for the diff mont would be nice too.

Other than above, what else should I do as long as I am in there. Any help is appreciated.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car