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Eibach springs and sag

Discussion in 'Suspension' started by MDFM31, May 21, 2012.

  1. May 21, 2012 at 7:21 PM
    #1
    MDFM31

    MDFM31 [OP] Well-Known Member

    Joined:
    Oct 15, 2010
    Member:
    #44696
    Messages:
    157
    Gender:
    Male
    Wilmington, DE
    Vehicle:
    16 DCSBOR
    I'm looking into a steel front bumper right now, and how to upgrade the front end to handle the weight. I'm on 5100's at 1.75 and a 1.5 AAL and would like to keep the ride height roughly the same. I'm trying to avoid driveline vibes and blown CV's. I'm looking at the ARB and TMJ bumpers. I believe the ARB to be about 160 pounds said and done. If I am correct, the eibach's have a
    650lb/in rate. SOOOOOOO, if my math serves me well,

    i will be at a pre bumper lift of 2.45" (1.6+.85),

    and a post bumper lift of 2.20" (650lb/160lb=4.0625,

    therefore 1" / 4.0625 = .246" of compression from the weight of the bumper, not taking into account the moment of inertia from the front axle to the bumper,

    so 2.45"-.246"=2.20".

    A 90lb winch would take another .14", so call it 2.06".

    Does anyone have a setup similar to this? I know a lot of people recommend the OME 886 for a Dcab with bumper and winch for its 700 something spring rate, but I don't want that much lift. Would the 650lb/in rate nose dive really bad and cause other handling problems?
     
  2. May 30, 2012 at 8:30 PM
    #2
    MDFM31

    MDFM31 [OP] Well-Known Member

    Joined:
    Oct 15, 2010
    Member:
    #44696
    Messages:
    157
    Gender:
    Male
    Wilmington, DE
    Vehicle:
    16 DCSBOR
    ^ thanks. New calculations in the works, now with actual weights of a bumper and winch i bought
     
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