which diff
Moderator: martauto
hi all my diff needs changing and i was thinking of not doing a direct change but putting something else in that would drop the rpm a bit the car is auto with a m40 all else is good i did ask the qustion before but got side tracked on other stuff sorry all info most welcome o and what cars i can robb the diff from
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rix313
- E30 Zone Team Member
- Posts: 4942
- Joined: Fri Oct 31, 2008 11:00 pm
- Location: Silverstone
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Your car probably has either a 4.4 or 4.25 which are fitted to allow it to drag it's sorry arse from a standing start without making a fool of it's self 
You could drop to a 4.1 which would reduce your top end revs slightly or down to 3.91 but that would be the limit unless you start facing down a hill. An open diff of these ratios can be found in the for sale section for between £20 and £50 usualy.
http://www.e30zone.net/e30zonewiki/inde ... ferentials
You could drop to a 4.1 which would reduce your top end revs slightly or down to 3.91 but that would be the limit unless you start facing down a hill. An open diff of these ratios can be found in the for sale section for between £20 and £50 usualy.
http://www.e30zone.net/e30zonewiki/inde ... ferentials