Quote:
Originally Posted by BobbyK
3:73's
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Wow small world. Your truck is scary similar to mine.
I'm running the original 3.07 gears, but I have a pile of boxes here full of all the parts needed to swap both diffs to 3.73's along with a new rear posi from Eaton.
Now you have me wondering. I also tow with mine, a small 12 foot utility trailer hauling various things, and had planned to tow a 3800 lbs. 19 foot camper with it. Just what I need is the output shaft to snap while moving that around,,,ugh...and here I figured the tiny pinion in the 12 bolt would snap before anything else (I've broken them off before).
I'm getting 17.2-17.5 mpg around town stop and go driving, and 21-22 mpg on the highway with the current setup, a 2004 6.0 LQ4 and the 4L60.