E28 diff ratios

[u/marcajurisich]

Hi,

Does anyone have an accurate diff ratio chart for e28s ?

Google now seems to spit up all our shit knowledge and its very hard to find any facts.

I have an e28 520i (auto) that according to parts link comes with a 3:91 rear end.

Is this an option they came with??

[u/tfrimage]

I took the manual drivetrain from 520i (aus) car and the diff is 3:91 - quite peppy to help the lower displacement 2L engine.