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Fixing taco lean in the rear?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Dilleytech, Jun 27, 2015.

  1. Jun 27, 2015 at 10:20 AM
    #1
    Dilleytech

    Dilleytech [OP] Well-Known Member

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    Front ARB bumper, LR UCA's, OME 885/90021 struts, Ome shocks rear, general springs HD leaf pack.
    After my latest leaf spring pack upgrade my rear is sitting about 1/2" lower to the left. And the front is 1/4 " low to the left" with Ome trim packer". Typical taco lean I geuss.

    Just wondering don't they make shims or something to correct the lean in the rear? Something I could just loosing the U bolts and slide in sorta like a short block?
     
  2. Jun 27, 2015 at 11:50 AM
    #2
    Dilleytech

    Dilleytech [OP] Well-Known Member

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  3. Jun 27, 2015 at 12:22 PM
    #3
    Pigpen

    Pigpen My truck is never clean

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    You need to fix it from the front
     
  4. Jun 27, 2015 at 12:29 PM
    #4
    Toy4me

    Toy4me Well-Known Member

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    You can't shim just one side of an axle. The spring and spring perch have to be parallel to each other to mate flush. If one side was higher than the other they wouldn't contact each other properly. The u-bolts might get them to pull together with a small shim on one side, but at the expense of putting a sideways twist in the leaf spring. Hope that makes sense, I don't know how to make diagrams on the computer.
     
  5. Jun 27, 2015 at 12:37 PM
    #5
    Dilleytech

    Dilleytech [OP] Well-Known Member

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    Even at a 1/4 inch?
     
  6. Jun 27, 2015 at 12:38 PM
    #6
    Dilleytech

    Dilleytech [OP] Well-Known Member

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    Front ARB bumper, LR UCA's, OME 885/90021 struts, Ome shocks rear, general springs HD leaf pack.
    I'm not talking about degree shims but flat shims. Not sure if that's what your thinking..?
     
  7. Jun 27, 2015 at 1:22 PM
    #7
    Toy4me

    Toy4me Well-Known Member

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    We're on the same page - flat shims, or more correctly in the application you're describing, one block. IMG_0804.jpg In my crappy drawing, the red lines are the imaginary parallel lines between each spring perch and each spring. In the upper drawing spring and perch will meet up flush. In the lower, with a block on one side, parallel is lost, causing each spring to contact the perch only on the right side, and leaving a gap on the left. This causes the springs to have to be twisted in a counterclockwise direction to mate up flush. The bigger the block, the bigger the problem. A 1/4" differential might cause such a slight loss of parallel as to be inconsequential, someone smarter than me will have to answer that. Imho,I would expect twisting the spring in this manner wouldn't be good for it, though maybe the stock rubber bushings would take up some of the twisting, but I wouldn't do it.
     
  8. Jun 27, 2015 at 2:05 PM
    #8
    Dilleytech

    Dilleytech [OP] Well-Known Member

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    Front ARB bumper, LR UCA's, OME 885/90021 struts, Ome shocks rear, general springs HD leaf pack.
    I would think since they are currently un level. that alone is causing some twist?
     
  9. Jun 27, 2015 at 2:17 PM
    #9
    Dilleytech

    Dilleytech [OP] Well-Known Member

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    Front ARB bumper, LR UCA's, OME 885/90021 struts, Ome shocks rear, general springs HD leaf pack.
    I see now that wheelers does offer 5mm stackable trim packers for the rear.
     
  10. Jun 27, 2015 at 2:44 PM
    #10
    Toy4me

    Toy4me Well-Known Member

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    Maybe, but the bushings will flex much more readily than the springs and allow for some differential side to side. Like I said, I might be wrong. The springs move independent of each other, bushing flex and shackles might allow for this and your 1/4" block on one side might be fine. Though what I drew might be technically correct, it's not all solid mounting points, there's enough flex points that it might not matter with a small block.

    Edit; saw your 5mm rear trim packer post so I guess it's ok to a point. It says stackable, do they give a limit how high?

    2nd edit; You just replaced your leaf springs, right? Are they side specific, could you have swapped them?
     
    Last edited: Jun 27, 2015
  11. Jun 27, 2015 at 8:30 PM
    #11
    Dilleytech

    Dilleytech [OP] Well-Known Member

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    Front ARB bumper, LR UCA's, OME 885/90021 struts, Ome shocks rear, general springs HD leaf pack.
    They were not side specific
     

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