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04+ VNL drive axle shocks and upper bracket mount holes

Discussion in 'Volvo Forum' started by Slow302, Apr 18, 2016.

  1. Apr 18, 2016 #1
    Slow302

    Slow302 Medium Load Member

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    I have 04 670 and when i bought my truck back in 08 i noticed that shocks on front drive axle are mounted on bracket in upper hole and rear axle shocks are mounted in lower hole. And that where i keep them. I see many VNL are same way except a few. Can someone tell me why use lower hole in upper bracket on rear axle and not both in upper hole. Looks like if you use lower hole shock gonna be compressed more than front ones and wont have much up travel ?
     
    Slow302, Apr 18, 2016
    Slow302, Apr 18, 2016
    #1
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  3. Apr 18, 2016 #2
    boneebone

    boneebone Road Train Member

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    It most likely has to do with using parts "Off the Shelf" vs. manufacturing a whole new bracket with just one hole in it, that way the same part can be used for multiple applications.

    The reason the shock is in the bottom hole in the rear position has to do with suspension travel and geometry, the engineers found the shock worked best in that position.

    If you see other trucks with the shock in upper position in the rear, it could be the idiot mechanic who changed the shocks at one time put them in the wrong hole.

    It happened to a friend of mine who had his shocks changed, he had to take it back to the shop and have them move it to the lower hole.
     
    boneebone, Apr 18, 2016
    boneebone, Apr 18, 2016
    #2
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