How do i find out what diff i got on my 91 320iSE, it aint a LSD. Thinking of changing it for lower revs when cruising at 80.
MITCH
What Diff ratio??
Moderator: martauto
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koos
- E30 Zone Regular

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Simon
- E30 Zone Team Member

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Pretty sure it's a 4.10, especially as you mention it revs high when on the motorway, my 320i touring is the same, will be changing it for a 3.64 soon.
Find out by checking the tag on the back of the diff, to the right of the filler plugs, may need some cleaning before you can read it though.
Find out by checking the tag on the back of the diff, to the right of the filler plugs, may need some cleaning before you can read it though.

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koos
- E30 Zone Regular

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- Joined: Wed Jun 29, 2005 11:00 pm
- Location: Crawley, West Sussex
I got a 4.1 anyone want to swop for a 3.64, mines got 56000 miles on it, the pinion seal is leaking though.
Mitch
Mitch
