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Tire Pressure?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Sammy, Jun 29, 2001.

  1. Sammy

    Sammy 1/2 ton status

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    Or what pressure do you guys off-road. I run 35"X14,5" and weigh about 5500lbs. Auto deflaters stop at 8psi the lowest. So I would like to know if you (or I should) go below that.

    "1988 K5 Grand GT Blazer Silverado in the Netherlands."
     
  2. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    no that sounds right. 8psi is the bare minium I would run. 10psi is my normal

    '83 GMC Jimmy 4x4 ZZ4 Crate Motor
    '83 Chevy P/U 4x4 Sand Drag Racer, 578 RWHP
    '94 Impala SS
    '01 Chevy 2500HD w/8.1L & Allison Auto
     
  3. BurbinOR

    BurbinOR 3/4 ton status

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    What brand name are those auto deflators? And do you think they are a worthwhile investment?

    Thanks.

    <font color=blue>'79 ONE TON TPI K5 - See it at---&gt;<A target="_blank" HREF=http://www.blazzinor.alloffroad.com>http://www.blazzinor.alloffroad.com</A>
     
  4. Sammy

    Sammy 1/2 ton status

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    <A target="_blank" HREF=http://www.oasis-off-road.com>http://www.oasis-off-road.com</A>

    I think they are. I find deflating a real waste of time. I only do it becouse I have to but I don't like the job.


    "1988 K5 Grand GT Blazer Silverado in the Netherlands."
     
  5. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    Ive got 35 12.5s and I them run between 10 and 15lbs.I dont go any lower cuz when I drag a rock hard the bead moves enough to let out some air but not enough to pop it off the bead.I always thought if I went any lower than that I might have problems.

    <A target="_blank" HREF=http://community.webshots.com/user/beaterwhang>http://community.webshots.com/user/beaterwhang</A>
     
  6. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Frank, I just pull the valve out of the stem and listen to the thing deflate. After a couple of times you can 'hear' when you're close to the desired pressure. My bias ply Swampers I air down to 7 or 8 psi...but they are still fairly stiff. I may have to run em a couple of times with no valve stems at all to get the sidewalls a little more flexy.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  7. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    Ive got low $ deflators but there not auto.They cost $5.I use clip on tire inflators.Clip them on the stem and go.Ive got 4. Takes about 5 min to go from 30 to 10 on all 4 tires.Takes about 45 seconds per tire to fill from 10 to 30 with my C02.

    <A target="_blank" HREF=http://community.webshots.com/user/beaterwhang>http://community.webshots.com/user/beaterwhang</A>
     
  8. RAY

    RAY 1/2 ton status Premium Member

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    You can use the ends off the cans of fix-a-flat after the can is used up. That is what I use and there free.
    Ray
     
  9. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    Thats a good idea too.

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  10. 84_Chevy_K10

    84_Chevy_K10 Banned

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    If I air down, I don't go lower than 20 PSI.....

    But I do mud at high speed.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     

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