Peterbilt 389 bunk air height?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Chevyho, Apr 10, 2018.

  1. Chevyho

    Chevyho Medium Load Member

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    Dec 13, 2013
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    Got a 09 389 with 36” bunk. Can anyone tell me the proper bunk air ride height to set at? Put new cab mounts, and hood isolators in and I think someone may have adjusted it to compensate for the worn cab mounts. My hood is too close to cab at top, like the cab is leaning forward towards hood..
     
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  3. pushbroom

    pushbroom Road Train Member

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    Sep 1, 2012
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    The arm should be level and the bags roughly 7". See the attached diagram.
     

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