Tire question
#11
i just finish installation of 4.5 lift kit from AEV and 35s on my JKU 2014 3.73 axle, the major effect is the mpg. slight difference in shifting points.
the car performance look fine, i don't do rock crawling at all but i ride the dunes on weekly basis.
the car performance look fine, i don't do rock crawling at all but i ride the dunes on weekly basis.
Can anybody, expert or otherwise, give me the low down on the gearing and difference running the Cooper STT 33" and the 35" same brand tire please.....there is only about 1.11 inches difference in size there according to Coopers website and the 35's are about a pound and a half heavier. Doesn't seem like much but until I have the opportunity to re-gear I'd like to go ahead and get the tires and run them for a while, although I want to be able to travel fairly normal and not bog down my JK. Was just interested if anybody has gone up in size without regear and how painful life was afterward. FYI 3.73 is what I'm running on an 08
#13
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Many people have run bigger tires with stock gears. Nothing new there. I agree that OD/Off isn't the best solution, but it works, and many of us with 3.8 auto's have used it over the years. (with 5.38's and 37's, I still turn it off occasionally). If you choose to go ahead with the tires, turning it off sure beats lugging the engine and constantly shifting in and out of overdrive and the possibility of burning up the trans. And with the charts and knowing that the OD ratio is .69, you can easily run the numbers to get an idea of where your rpm's will be with different tire sizes.
Last edited by nthinuf; 04-26-2016 at 12:09 PM.