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Air leaf single axle ride height

Discussion in 'Peterbilt Forum' started by WyoVac, Mar 5, 2018.

  1. Mar 5, 2018 #1
    WyoVac

    WyoVac Bobtail Member

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    Feb 11, 2017
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    Hi all, I’ve done my research and haven’t found the dimension for the single axle set up. The bulletin says N/A....? This is on a ‘99 379 short hood. Thanks in advance for your input. A47A55EA-419F-462D-9E34-728457C5F154.jpeg
     
    WyoVac, Mar 5, 2018
    WyoVac, Mar 5, 2018
    #1
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  3. Mar 5, 2018 #2
    pushbroom

    pushbroom Road Train Member

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    Whats the last six your S/N?
    The fact it isn't on there makes me think they didn't sell a single axle with air leaf.
     
    pushbroom, Mar 5, 2018
    pushbroom, Mar 5, 2018
    #2
  4. Mar 6, 2018 #3
    WyoVac

    WyoVac Bobtail Member

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    Feb 11, 2017
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    0695A127-2778-42DF-8F9A-61A9E0416AB1.jpeg 023CDC7D-509F-4BA9-AE33-A1348E6BE4B3.jpeg D6209437-0500-48D7-9F77-27C30EA3B21E.jpeg I’ve removed the inter axle and slid the rear forward.
     
    WyoVac, Mar 6, 2018
    WyoVac, Mar 6, 2018
    #3
  5. Mar 6, 2018 #4
    pushbroom

    pushbroom Road Train Member

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    Start at the tandem ride height. Factory angles were 4.0 on the front drive and 11.0 on the rear. Since you are moving the rear to the front I would look to get the axle to 4.0. This may require shimming as the forward and rear axle shims are different.
     
    pushbroom, Mar 6, 2018
    pushbroom, Mar 6, 2018
    #4
    Goodysnap and WyoVac Thank this.
  7. Mar 6, 2018 #5
    WyoVac

    WyoVac Bobtail Member

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    Feb 11, 2017
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    Thanks pushbroom. I’ll try the tandem ride height first. When you say shimming, is that item # 19 and the shim looking piece that sits on the spring perch?? 6870F45F-78AF-4D14-9C9F-2F4040928AC9.png
     
    WyoVac, Mar 6, 2018
    WyoVac, Mar 6, 2018
    #5
  8. Mar 7, 2018 #6
    pushbroom

    pushbroom Road Train Member

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    i was more referring to the long shim that is unlabeled on top of it.
    You should be able to re use the shim off the front diff if needed.
     
    pushbroom, Mar 7, 2018
    pushbroom, Mar 7, 2018
    #6
    WyoVac Thanks this.
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