Tire PSI on road/off road - JeepForum.com

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post #1 of 3 Old 09-06-2006, 09:59 PM Thread Starter
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Tire PSI on road/off road

What is the best tire PSI to run on road/off road with 31x10.5 kumho mud terrains?

1989 Jeep Cherokee 4x4
3 inch Rough Country AAL lift
Cragar soft 8 wheels
31x10.5 Kumho Mud Terrain tires
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post #2 of 3 Old 09-06-2006, 11:19 PM
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27-32 psi on road depending on how the tires wear. 14-18 psi on the trial, lower if somebody has onboard air (in case one comes off the bead of the rim).


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post #3 of 3 Old 09-06-2006, 11:24 PM
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Take some chalk and draw a line straight across the tread. Then drive in a straight line for a couple of yards and inspect the marks.

If the lines are still thick and unrubbed on the outside the tires need to be deflated some.

If they are not rubbed as much on the middle and rubbed good one the sides, the tires need inflated some.

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