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What psi should i dd with???

Discussion in 'The Garage' started by George_Pimpdaddy, Jan 24, 2007.

  1. George_Pimpdaddy

    George_Pimpdaddy 1/2 ton status

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    Hey just got my 89 blazer back on the road again with the new tranny, tbi 355, and new hedders and duals. Anyways i have no lift and no front swaybar and live in a city with bumpy roads lol. I have 31" BFG Mud terrains on the rear with my posi and 31" bfg all terrains on the front, both sets are 90% tread left. my question is what would a good pressure be front to back? thnks for any help as i want my tires to last as long as possible. :haha:
     
  2. K5Greek

    K5Greek 1/2 ton status

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    whatevers on the side of the tire
     
  3. Jason4x4

    Jason4x4 1/2 ton status

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    the pressure on the side isn't always the best to run, it is the maximum, imo, the best way to set pressure is to put some in, roll it forward through some dirt or a wet spot on the driveway and see if the whole tread is dusty/wet, if it is in the center, drop pressure a bit, if it is outside, raise a bit and repeat, i am running about 18 psi in the rear tires on my truck to keep them flat on the road.
     
  4. 88Silverado

    88Silverado 1/2 ton status

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    32 to 35. Safer to run with a slightly over inflated tire than an under inflated one.
     
  5. 81K5GUY

    81K5GUY 1/2 ton status

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    I run 33's and have around 25lbs in em on my dd ,seems to help the ride alot.
     
  6. George_Pimpdaddy

    George_Pimpdaddy 1/2 ton status

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  7. bear76

    bear76 1/2 ton status

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    When I was running BFG AT's 31x10.5 I followed what was on the door sticker. 30psi-front 35psi-rear. Worked well for me.
     
  8. Goose

    Goose 1/2 ton status

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    When I ran 33x12.50/15s I ran 35 all the way around. Between that and frequent rotation/balance they lasted forever. They were BFG MTs. The front tires just barely cupped after a lot of miles. I see a lot of 4x4s with the front tires cupping bad.
     
  9. koldsimer

    koldsimer 1/2 ton status GMOTM Winner

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    I'd run them at about 28-30 for the street. 15-20 for off road.
     
  10. George_Pimpdaddy

    George_Pimpdaddy 1/2 ton status

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    thanks for all the replies guys :bow:
     

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