Regearing and Tire Size

[NorthCountry]

Thank you for your response, but I'm actually from New Hampshire. We have a few mountains but we mostly run fire access roads, logging roads, checking out wildlife, no rock crawling.

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[ALT2870]

Got it, might want to change your profile location then.

 

[Panthers65]

It will affect the truck no matter how you slice it.

"Acceptable" is up to you, I know some people that moved to 33's and were miserable until they regeared, and others runnin 38's and 40's on 3.73s and couldn't care less. Lots of Jeeps running around on larger tires and factory gears, not what I'd recommend but they are definitely out there.

If you've ever driven a manual transmission, how hard is it on the Jeep to start in 2nd or 3rd gear every time instead of 1st? or towing a trailer around all the time even when you don't need it? That's essentially what you're doing with the larger tires and factory gears.

Will the Jeep immediately blow up if you run 35's on the factory gears? Of course it won't, but I'd keep that budget in the back of your mind that if you are one who really doesn't like it that you'll need to regear after.

 

[NorthCountry]

Got it, might want to change your profile location then.

My apologize, I do live in Pa. but I do go back to New Hampshire often. Again, thank you for your response.

 

[NorthCountry]

It will affect the truck no matter how you slice it.

"Acceptable" is up to you, I know some people that moved to 33's and were miserable until they regeared, and others runnin 38's and 40's on 3.73s and couldn't care less. Lots of Jeeps running around on larger tires and factory gears, not what I'd recommend but they are definitely out there.

If you've ever driven a manual transmission, how hard is it on the Jeep to start in 2nd or 3rd gear every time instead of 1st? or towing a trailer around all the time even when you don't need it? That's essentially what you're doing with the larger tires and factory gears.

Will the Jeep immediately blow up if you run 35's on the factory gears? Of course it won't, but I'd keep that budget in the back of your mind that if you are one who really doesn't like it that you'll need to regear after.

Thank you for your response as well. I have engaged my "Current Gear" option on my dash board cluster and am going to keep an eye on what gears are being used and see how it goes. Thanks again and safe travels.

 

[IamPro2A]

Make sure you reprogram the computer for your new tire size. It impacts a lot more things than just the speedometer and odometer on a modern vehicle.

 

[JTGuy]

IMO 4.88s are perfect. Great for my 37s and if I want to tow I can go back to 35s and be perfect.

 

[crmarczak]

Make sure you reprogram the computer for your new tire size. It impacts a lot more things than just the speedometer and odometer on a modern vehicle.

How do I do this?

 

[NorthCountry]

I played it safe and stayed close to one tire size above stock. Toyo Open Country AT3's in 255/80R17 With only 3:73 gears I don't want issues. They fit well.

the Sport.

 

[MudderNuker]

I would get a lightweight wheel like Nomad or Rocktrix (if you really want new wheels) and stick to 285/70r17 with your 3.73. My previous JTW came with 32" and 3.73. I moved up to 285s and really didn't notice much difference if at all. And I'm at 7,000 feet in elevation. Unless you plan in the future to go bigger than 33", I think you can spend the Re-gear money on something else.

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