Front bump stops

Discussion in 'Street Suspension' started by Dasanii19, Apr 19, 2019.

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  1. Dasanii19

    Dasanii19 Member

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    CEC658EA-436B-42E7-AE08-75137D0E04BB.jpeg 915ADCB2-585A-4F14-80E5-9A08A520BF2A.jpeg Are my bump stops suppose to be this close? I recently purchased this 2007 Yukon XL 2500. The tire size the last owner has on this Yukon is LT275/65R18 and it does rub the front and back wheel wells when pulling out of the drive way at a turn. I’m just not sure if this is normal or if maybe the tortion bars aren’t adjusted right or maybe my springs are bad? Was hoping for some input. Thank you! Oh yea, my original bump stops were chewed up pretty bad, that’s why I replaced them.
     
  2. Ilikemtb999

    Ilikemtb999 Full Access Member

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    My 07 Sierra had z71 jounce bumpers (more pointy than those) and I lowered it down to where it just touched rode well. Originally though there was a small gap.

    They’re not bump stops but rather a part of the spring system that adds progression to the system.


    What does the rake look like on it? Any side shots?
     
  3. Dasanii19

    Dasanii19 Member

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    43083710-6350-48E7-94F9-851BE8B9DDED.jpeg
     
  4. Ilikemtb999

    Ilikemtb999 Full Access Member

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    That for sure looks too low in front. Obviously some rake stock but that’s far too much.
     
  5. Dasanii19

    Dasanii19 Member

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    How do I figure out if it’s bad springs or if the tortion bars just needs adjustment?
     
    Last edited: Apr 20, 2019
  6. Ilikemtb999

    Ilikemtb999 Full Access Member

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    I’d look at the torsion key bolts and see how far out they are. I’d just adjust them up some. Isn’t hard at all. Just make sure you go evenly side to side. Easier on the bolts if you jack the front end up but if nothing is corroded than you could just do it with it on the ground.
     
  7. Ilikemtb999

    Ilikemtb999 Full Access Member

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    Here’s my Sierra with the jounce bumper just touching the control arm up front and 3” lowering shackles in back

    6826AFD9-4858-469B-846B-74D4DBF0B852.jpeg
     
  8. intheburbs

    intheburbs Full Access Member

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    I think the problem is the width of the tires. Mine came stock with 245 tires. Yours are over an inch wider, so I'm not surprised you're rubbing.

    I'll get some pics of my stops later today.



    You're forgetting that this is a 2500. That's pretty close to a stock stance.

    Here's mine, stock tire size and stock suspension .
    [​IMG]

    Actually sitting level, but loaded with 1600 lbs of people and stuff:
    [​IMG]

    I think this illustrates the problem...
    Screenshot_20190421-022356_Chrome.jpg
     
    Last edited: Apr 21, 2019
  9. Ilikemtb999

    Ilikemtb999 Full Access Member

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    My Sierra is also a 2500HD. Regardless I’d crank them up a bit to get less rake and less rub.
     
  10. intheburbs

    intheburbs Full Access Member

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    A few more pics..

    A better pic of the stock stance
    20190421_111704.jpg


    And my shredded bump stop. If I actually had one intact, it'd be similar to the OP's.

    20190421_112129.jpg

    So you want to trade off some annoying rub in favor of more stress on the CV joints, making them fail faster? No thanks.

    I never understood that - whether it be leveling or a lift. You're putting more stress/strain on your power train for nothing more than a "look" or "stance?" SMH
     

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