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Uneven frame height.

Discussion in 'Peterbilt Forum' started by JTS51, Oct 8, 2011.

  1. Oct 8, 2011 #1
    JTS51

    JTS51 Bobtail Member

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    Sep 3, 2011
    Hudson WI
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    I've got a single axle with Low Air Leaf suspension. The frame rail heights above floor vary by 5/16" when measured at the air bags. Floor is level. Tire pressures are the same. Doesn't sound like much, but it is about 1" from side to side on my 8'4" flatbed. Has anybody added a spacer above or below the air bag on the low side to correct this? Or any other ideas? Thanks.
     
    JTS51, Oct 8, 2011
    JTS51, Oct 8, 2011
    #1
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  3. Oct 8, 2011 #2
    Superhauler

    Superhauler TEACHER OF MEN

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    keep stroking.
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    check the height on the front of truck, could be a weak spring on one side raising the opposite side on the rear. or just a bent frame rail.
     
    Superhauler, Oct 8, 2011
    Superhauler, Oct 8, 2011
    #2
  4. Oct 8, 2011 #3
    Scania man

    Scania man Road Train Member

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    Jul 1, 2011
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    It could actually be only a shock, hard to believe but when a shock starts to get weak it sits much lower than the rest because it can't hold the oil pressure , check the shock in the lowest corner
     
    Scania man, Oct 8, 2011
    Scania man, Oct 8, 2011
    #3
  5. Oct 9, 2011 #4
    stranger

    stranger Road Train Member

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    Put spacers between the front axle and the spring to level the front, and the rear should take care of itself. Almost every truck sits lower on one side in the front, which affects the rear.
     
    stranger, Oct 9, 2011
    stranger, Oct 9, 2011
    #4
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