Originally Posted by Cwill15
I'm new to the Jeep community and look forward to getting into it all. My question is, On a 99 Wrangler with a 4.0l and stock gears. I want to get a lift to fit atleast 33x12.50 if not 34's or 35's. With which tire size would it be absolutly ness. to change out the stock diff. gearing?
Thanks in advance guys.
Your automatic is a 3-speed without an overdrive so don't gear too low or your highway RPMs will be too high. If it were me, I would go 4.10 with 33" tires and 35" tires would do well with 4.56 with your particular transmission.
It costs, on the average, $1200 or so to regear both axles including all parts and labor.