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  • Tire pressure recomendation !!! Any suggestions

    I have 31 x 10.50s on my yj and I inflated the tires to 47 lbs cold ( 3 lbs. less than the info on the tire) I noticed the off rd. traction was way off as to what I have been getting !!! What pressure do you all recomend ????? I had been running 35 lbs with great traction but thought this might be too low for highway driving ????? Thanks in advance for the replys !

  • #2
    The (low) weight of a YJ doesn't require such high air pressure. You're best off running tire pressure that gives the most even wear pattern. That exact pressure really depends on the tire, but I'm willing to bet that you're still high for a Jeep.

    As for offroad, many people air down to the 14-18 psi range for better traction. Just gotta find a place to air up or carry a compressor, air tank or onboard air setup for after the day's wheeling.

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    • #3
      I agree. Almost all Jeeps come from the factory with a 35 psi recommendation on stock tires. With mud tires that have even stiffer sidewalls, you don't need that much pressure. I NEVER run over 35 psi in my tires. And on the trail I like 20 psi the best since I don't have beadlocks.

      Remember, the load information printed on the side of the tire is the MAX air pressure you can put in there, not necessarily the air pressure you SHOULD put in there.

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      • #4
        I have 31" BFG A/Ts on one Jeep and 31" Pro Comp Mud Terrains on the other. I run about 26-28 p.s.i. in both and have had even tread wear. Neither Jeep feels squirmy on the road.

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        • #5
          Offroad I usually run 12-14psi

          Onroad I run 22-25psi, with 33" Trxus Mt's

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          • #6
            Thanks for the replys ! I knew I could count on you all ! Im gonna adjust the pressure back to 27 to 28 psi & try that out ! Thanks

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            • #7
              Originally posted by yelpu1
              I have 31 x 10.50s on my yj and I inflated the tires to 47 lbs cold ( 3 lbs. less than the info on the tire) I noticed the off rd. traction was way off as to what I have been getting !!! What pressure do you all recomend ????? I had been running 35 lbs with great traction but thought this might be too low for highway driving ????? Thanks in advance for the replys !
              The info on the tire is MAXIMUM inflation pressures and not RECOMMENDED pressures!!!

              I think someone posted a picture a while back of the grease pencil test to ensure you have correct inflation/tire footprint on the road. To me that is the only way to do accurate tests of inflation pressure. Do a search or maybe someone can re-post.

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              • #8
                Chalk test is the best way, search for it.

                I run 26 on the street and 10 off road.

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