I am looking into getting 35's mainly for clearance, but also because I think they will look better in an 18" rim currently holding 275/70's. My question is...will I have to regear?


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What gears auto ? Stick ?

 

What motor do you have? What terrain do you drive on?

 

Need more info. Year, tranny, and gear ratio. Also, do you have a lift so you can clear 35's?

 

"Have to"? No. Want to? Maybe

And as others have stated it depends on year and tranny


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... and location, and usage, and personal opinion.

This is one of the many questions that is asked just about every single day, so there are a ton of threads to read through for more info and opinions. But you could start by opening the Faq's at the top of this modified area and plugging some numbers into the charts to start getting a better idea and maybe put the advice you will get into better perspective.

 

I have a 2009 Jeep Wrangler Unlimited. It is a V6 Automatic Transmission. It has the stock gears in at the moment and it has a 4" lift.

It is my daily driver, but I do a lot of off roading as well. I mainly want the bigger tires so I don't have to worry as much about clearance in the trails.


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3.8, auto, 4door, 35's - 5.13's are very popular. Some people close to sea level with no hills like 4.88's. And some (with d44 front axles) like 5.38's.

Plug some numbers into the chart to see where you will be. Use actual measured tire height, not mfg spec, and you will need your current gear ratio. Stock gears could be 3.21, 3.73 (or 4.10 for a rubicon), so if you don't know what you have, you might want to find out. Either email for a build sheet, or lift a corner, spin the tire and count driveshaft revs.

What you may want to do, though, is just get the tires and drive it and see what 'you' think. If it's too gutless on the freeway, press the OD Off button. (and if you want to get an idea of what that does -- get the rpms on the chart for your current gears and the new tire size, then just divide what you get by .69)

 

Then, you have 3.73 gears.

Your OD will be pretty much useless. However, if you turn it off on the highway and just run in 3rd gear, you will turn the same engine RPMs as you would with 5.38 gears.

If you run a Superchips Flashpaq tuner with the Towing tune and turn off the OD button every time you get into your jeep, it should be bearable with 35s.

Your around town fuel economy won't be great, and offroading, it won't be very good in slower, more technical terrain.

 

What are some good gears that I could get for a pretty cost effective price? The tires are already gonna kill the wallet, but one without the other sounds like it will be pretty useless.


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