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Old 06-23-2017, 11:01 AM   #9
chevy_mike
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Join Date: Jul 2006
Location: San Diego, CA
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Re: Rear Gear change for better mpg

Quote:
Originally Posted by Captainfab View Post
This is confusing....is that in D or OD?



I agree on a gear change to either 3.42's or 3.73's depending on tire size.
How it reads is, in OD he is at 1700 RPM's and in D he is at 2000 RPM's.

3.73's would be a good choice, if it was my money to spend. Actually at 2000 RPM's in drive, I would have left the transmission alone.
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