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735i/iL Differential Ratios? (archive)
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Posted by gale on August 19, 2001 at 22:49:02:

I'm trying to eek out a little better acceleration from my 735i for in-town driving since that's where I use it the most. Correct me if mistaken but didn't the 735iL change from 3.64 to a 3.91 rear end ratio around '90 or '91? Has anyone else made the swap? I think e34 M5's also used a 3.91? but would probably be more scare.

I'm not too concerned about the impact on fuel milage increased or highway rpm's since most of my driving is in-town & on an average I only put on 5k miles per year. I realize going from 3.64 to 3.91 isn't a dramatic change percentage wise but a 4.10 or 4.27 seams a little too aggressive. Any feedback appreciated.

gale
92 735i
148k

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