urgent diff question!!!

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Martin323i
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Post Fri Jan 06, 2006 2:30 pm

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?
kam-325i
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Post Fri Jan 06, 2006 3:02 pm

All E30 diffs have the same fitting, regardless of which E30 they are on.
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Martin323i
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Post Fri Jan 06, 2006 8:34 pm

What about the propshaft length? If I change from small to large case will I need to get another propshaft?
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Post Fri Jan 06, 2006 8:35 pm

no just shorten the one you have - its adjustable at the centre joint
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Martin323i
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Post Sat Jan 07, 2006 8:31 am

Thanks. That's great news! :D
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Martin323i
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Post Tue Jan 10, 2006 6:48 pm

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!