Forum Discussion
rightlaneonly
Mar 02, 2018Explorer
I had a 2009 wrangler JK sport. 5 speed manual, V6, and 3:21 gears. Wanted to tow my Aliner but Jeep was rated at 1000lbs set up like that. Changed both differentials to 4:10s at a cost of $1800.00 about three years ago. Raised the tow rate to 3500 lbs and increased the RPMs by about 200 at any given speed. Not much change in the mileage altho it did lower it some.
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