Rear End - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 05-29-2005, 10:49 PM
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not to long ago the rear end went out in my 318is so I picked up a used one from a buddie I think the rear end was for a 325 and what ever the gearing is I know can strech 1st gear to 40 mph wich there for I don't have alot of low end tourge for granted its a 4cyl but I would like a little more off the bat so my question is what would be a good gear ratio to go with in that rear end so I get more tourge off the start???? let me know guys opions and thoughts are Thanks
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#2 (permalink) Old 06-01-2005, 01:54 PM
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4.10 lsd,but i guess thats what your original was.Right??

89'325i(4door)
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#3 (permalink) Old 06-01-2005, 10:30 PM
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see thats the thing I don't know what the origanal rear end is all I know now is the new one is deffiently geared for the highway. I have no low end tourge when I go to turn a corner I have to drop back into first cause in second gear I don't have the rpm's I should
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#4 (permalink) Old 06-02-2005, 10:03 AM
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There should be a stamped tag on each diff, usually rear passenger side. They are usually in a format of S#,## ##### where the S = Slip (LSD) and the next 3 numbers are the ratio.

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1984 325e - Delphin Grey
Damn near stock, for now.
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#5 (permalink) Old 06-02-2005, 08:53 PM
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no (S) and the only numbers on it are 1 210 411 and there stamped into the case of the rear end.
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#6 (permalink) Old 06-02-2005, 09:39 PM
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There is always a chance the tag is missing. It's usually a stamped tag attached to one of the cover bolts near the right axle stub.

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1984 325e - Delphin Grey
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#7 (permalink) Old 06-02-2005, 10:13 PM
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I looked there as well and no S but figure this one out the number on the cover was 1 210 433 so I don 't know ghead
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