anyone know what the diff gearing options were on a 1987 535i automatic?

dunno... sorry.

thanks, you have been a lot of help.......

This is not a E28 specialization forum. If you want really knowledgeable E28 folks, try MyE28.com.

EDIT: Just realized you are a member there. Sorry.

This is not a E28 specialization forum.

this subforum is a specialized E28 forum. What are you talking about?

probably just the higher ratios like 3.46, 3.64, 3.73, 4.10
then either open or LSD, you can change the ratios anyhow.
this board isnt to active so i would join mye28 if i was you to be honest.

mye28.com is THE PLACE for this type of info, several members cross-post, but there are several thousand people over there and all they talk about it E28s...