Hi there
My diff needs replacement. I can get another but I need to be sure that it fits. I need to order diff today!
I have a 4.1 small case diff in car now. I can get a 3.64 out of a 320i or one out of a 318i. Will it fit?
The diffs are 1200km's away so I can't see them. What should be measured on their side and my side to be compared?
urgent diff question!!!
Moderator: martauto
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Martin323i
- E30 Zone Newbie

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kam-325i
- E30 Zone Team Member

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All E30 diffs have the same fitting, regardless of which E30 they are on.
Pete don't care about colour, He would shag a rainbow if he could find the end of it....


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Martin323i
- E30 Zone Newbie

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What about the propshaft length? If I change from small to large case will I need to get another propshaft?
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Jhonno
- Homo Hair
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no just shorten the one you have - its adjustable at the centre joint
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Martin323i
- E30 Zone Newbie

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- Location: Mossel Bay, South Africa
Thanks. That's great news! 
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Martin323i
- E30 Zone Newbie

- Posts: 111
- Joined: Fri Sep 09, 2005 11:00 pm
- Location: Mossel Bay, South Africa
Got the 4.1:1 diff out and 3.64:1 in.
Swap was easy peasy
The 3.64 mated with my 2.3L engine works like a dream. This was a great swop!
Swap was easy peasy
The 3.64 mated with my 2.3L engine works like a dream. This was a great swop!

