What are the diff options and what models do they come off? Looking for a higher ratio for low rpm cruising.
Cheers
Which diff ratio for the M50 with 1:1 5th?
Moderator: martauto
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ian332isport
- E30 Zone Team Member

- Posts: 5380
- Joined: Wed Dec 22, 2004 11:00 pm
- Location: West Sussex
With a 1:1 5th, you need something like a 3.25 from an E30 M3.
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Brianmoooore
- E30 Zone Team Member

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- Joined: Mon Jan 10, 2005 11:00 pm
2.93 from a E28 525e gives the equivalent of 3.62 on the E30 box. About right in my experience.

