rear diff question
rear diff question
If I swap out my rear end from my 3.55s to 3.92s will I get better fuel mileage? or will I just be able to tow a little but more?
btw I have a 2004 Ram 1500 QC 4.7L 4spd auto 17 inch tires
btw I have a 2004 Ram 1500 QC 4.7L 4spd auto 17 inch tires
Record Breaker
Joined: Jan 2007
Posts: 2,451
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From: CA
Wouldn't be worth the time or money just going to 3.92's....go 4.10's or 4.56's. The best way to get better mileage is driving habits (lower speed, steady throttle, slower acceleration) and maintenance.
