New Tires

I'm gonna try 30 psi and go from there. Normally this wouldn't bother me but I drive a ton for work, a lot of highway miles.

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Wow 38psi on 35s that's nuts but I guess everyone's rig is different, I just bought my 37x12.50r17 trail grapplers I have them on a 9" wheel two door jk soft top nothing real heavy like rear bumper/tire carrier, these tires I have to run at 12 psi in order for me to get the perfect tire wear. What I would suggest doing is a chalk test. Grab some chalk make a line across the tread and drive, if you still see the chalk line towards the outer part of the tires tread then go ahead and lower your psi.

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Oh one more thing unless you have a programmer chip then the tpms/low tire pressure will be lit up. No big e I would rather see the indicator light up than have a bald center section on my 37s :beer:

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cis911 said:
Wow 38psi on 35s that's nuts but I guess everyone's rig is different, I just bought my 37x12.50r17 trail grapplers I have them on a 9" wheel two door jk soft top nothing real heavy like rear bumper/tire carrier, these tires I have to run at 12 psi in order for me to get the perfect tire wear. What I would suggest doing is a chalk test. Grab some chalk make a line across the tread and drive, if you still see the chalk line towards the outer part of the tires tread then go ahead and lower your psi.

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Wait wait...so your running 12 psi a set of 37's on the road? :eek: If so, I'm pretty sure that's extremely dangerous.
 
Yes that's right 12 psi on the road I went through the same thing for the first month I had 37s on my 08x then I was able to go up to 18psi.

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