Just put 35's on my 2008 jk Sahara. I have a Superchips programmer installed on it also. I would like to know what size ring and pinion I will need to give it about the ratio or better performance it had when it was on stock 32's.

 

Go to the FAQ and they have a chart that shows this stuff.

 

That's for a manual tranny. Auto is in the FAQ

 

thanks for the information

 

You will want at least 5.13 with your auto tranny. 4.88 might work, but I think 5.13 will be able to hold gear/speed better. But in all seriousness, please save your regearing money for something else, like a real performance upgrade - a turbo kit. I believe you could piece one together for about $2K or less. Anyways, with your 3.73 gears you can "regear" in a matter of seconds by turning off OD on highway, and putting tranny into 2nd gear in city. By doing that, you'll be effectively running as if you had 5.38 gears! So let's see, you get 5.38 gears, keep all the strength of 3.73 gears, and still have a pile of cash left for other upgrades...

 

Thanks for the good advice.