New diff... any ideas on the ratio and how to fit to an E30?

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JamOnIt
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Post Sun Jan 30, 2011 5:35 pm

Image


I've bought this diff, it's from an E28 525e with 307 0937 on the tag, do I swap back plates to fit it to my E30 and is the ratio 2.93 or is it a 3.07?

Thankyou
DanThe
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Post Sun Jan 30, 2011 5:52 pm

They are usually 2.93 I believe, but if it says 307 on the tag...

Work out the ratio yourself if you have it by turning the input and counting
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JamOnIt
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Post Sun Jan 30, 2011 6:00 pm

I think I'm getting there, so I just fit the E30 back plate/rear cover and output shafts.

I've got a tourer with m52b28 and e36 5speed box. I'm quite sure it's got a 3.15 ratio diff in at the mo and I'm still using way to much juice at cruising speed.
The_Diddler
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Post Sun Jan 30, 2011 6:07 pm

My tag on my 525e LSD read;

1441A916 S

41/14 = 2.93

I believe mine was a replacement diff