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37-12.5-17on road tire pressure?

Wild thang

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Curious to what tire pressure you guys are running on the street. I’ve been running between 30 and 35 pounds. tires seem happier at 35.

Mickey Thompson, MTZ 37 x 12.50x17.
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Escape.idiocracy

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What does your chalk test show? Everyone’s weights are going to be different… 30 front 27 rear?
 

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37 KO2 34 cold pretty much empty SportS max tow
 

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My Pat's M/T are happy at 30psi cold. Rotated regularly, I'm over 30k miles on this set, wearing evenly, and plenty to go to get to the indicators
 

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37x12.5R17 KM3's, heavily armored JK 2 Dr on bead locks. 26 PSI.
 

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Curious to what tire pressure you guys are running on the street. I’ve been running between 30 and 35 pounds. tires seem happier at 35.

Mickey Thompson, MTZ 37 x 12.50x17.
I'm running 37/13.50R20LT Toyo R/T Open Country tires. Tried a number of pressures, have ended up running 37 psi.
 

Reddout99

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When I got my 37/12.5R18s installed last weekend, I asked them to set the at 36psi. When I got it back they were set to 40 psi. It actually rides pretty nice. I'll probably drop the psi down 3 lbs or will that small amount make a difference?
 

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mine are 35's set to sticker on the door, 37psi. contact patch is thin but the truck drives fine
 

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SargeDiesel

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When I got my 37/12.5R18s installed last weekend, I asked them to set the at 36psi. When I got it back they were set to 40 psi. It actually rides pretty nice. I'll probably drop the psi down 3 lbs or will that small amount make a difference?
Higher tire pressure can seem to ride nicer, but you will wear the tire prematurely... don't think so ? Wait and see or just do a chalk test. If you want to get exact pressures for your vehicle, get it weighed, font axle, rear axle and gross weight as you normally drive. Input the weights in one of the widely available tire pressure calculators... don't just use the door jam sticker (you will understand why if you research how they determine the info).
 
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Wild thang

Wild thang

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Thanks for the replies!
I will have to try the chalk test,
I like the MTZ’s. They have great traction off the road but they haven’t been very road friendly. I’ll probably try the trail grapplers next go round two of these took a silly amount of weight they have a little over 32,000 miles on them now so I know it’s only downhill from here!
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