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No more e34!
Joined
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748 Posts
you must have teh 5 speed auto...

us 4 speed m50b25 autos have a 4.10
 

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The Biggest P0st Whore!!
Joined
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2,912 Posts
The following was on bmwe34.net before the upgrade. Cant seem to find it now.


Model OEM ratio Suggested ratio

525i M20 89-91 5 speed 3.73 4.10
525i M20 89-91 Automatic 4.10 4.45
525i M50 All 3.23 3.46
535i 5 speed 3.46 3.73 or 3.91
535i ->6/90 Automatic 3.91 4.27
535i 7/90-> Automatic 4.27 4.45
530i 5 speed (M60) 3.07 3.46
530i Automatic (M60) 3.15 3.46
530i 5 speed (M30) 3.64 3.91
540i ->3/04 2.93 3.25
540i 4/94-> 2.81 3.25
M5 3.6 ->7/91 3.91 4.10
M5 3.6 7/91-> 3.73 4.10
 

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No more e34!
Joined
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748 Posts
3.46 my suggestion.

the chart contained errors, thus I didn;t put it back up on bmwe34.net.
 

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No more e34!
Joined
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748 Posts
I am a mod/contributor there also.
 
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