35s to 37s

DaBear

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Joined
Sep 5, 2025
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Location
Illinois
Current Rides
2024 Red Rubicon 392
I have a 2024 392 with the stock 35 tires. Really like the looks of the 37s. Is it a straight switch to put the 37s on? Or will I have to change other stuff? 549284148_24605239212462513_5535008471619390370_n.webp
 
You can check previous threads on that , they are very informative on this topic.
I have done quit a bit of searching. Have not really found anything that really answers the question!
 
I have done quit a bit of searching. Have not really found anything that really answers the question!
From what I've read, they fit on stock XR suspension. If you don't flex it out, stock is fine, but if you do plan to go offroad and want to max it out, you have to add 1 inch of bumpstop to the back to keep from rubbing. I haven't done it though and my memory could be incorrect.

Here's a thread that has some information on it too https://www.jeep392.com/threads/any-regrets-using-37”-tires-on-stock-suspension.3507/
 
I went to 37" Cooper SST Pros on a 2021 non XR and only added 1" of bumpstop in the rear with 1.5" spacers on the stock beadlock capable rims. I don't have any rubbing with this combo
 
From what I have seen you need to add one inch to the rear bumps to avoid rubbing during flexing. Otherwise it will fit.
 
Added 1” bump and 37’s over a year ago. Zero rubbing.
 

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