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E30 3 deg neg camber on rear wheel!

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    E30 3 deg neg camber on rear wheel!

    Hello everybody. I have an 85 325e manual. Eibach lowering springs and very dead stock shocks.

    No rust, and I've done a lot of maintenance items like motor/transmission mounts, driveshaft bearing and flex joint (that was fun). So here is my dilemma.

    According to an alignment rack my driver's rear has almost 3 degrees negative camber and the passenger side about 1 degree. The car has Eibach sport lowering springs. I don't believe this car was in any kind of accident to warrant a bent control arm or the like, but it doesn't seem like there should be that much negative camber on that side.

    If I jack the car up by the body and then lower the body with the support of a jack on the rear crossmember I can watch the bushing/bolt move about 3/4" of an inch in. There is no banging or noise from the rear at all. I managed a 1.55 at Mosport GP track yesterday but I didn't want to push more since all the wheels were out of whack. I can blame the dead lowering springs for the odd camber on the front, but my focus is the rear right now.

    Looking at the rear suspension the travel up and down shouldn't affect camber but caster at it rotates up and forward.

    I'm interested in getting some feedback. Car is up in the garage so if you want some pictures of a particular area I'd be happy to.

    An interesting note is that the odd drivers side control arm seems to sit hanging further towards the ground than the passenger side yet that same side has almost 2 degrees more camber. Doesn't make any sense!

    #2
    That will be from one, or a combination of, bent trailing arm or worn out RTABs.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      Bushings alone can do that. I would start there as the cheaper of the two options presented.
      85 Toyota pickup.
      85 325e sedan daily driver.
      Various s13 bits for sale. Also a complete stroker kit to be listed soon.
      DriftSTL.com driftpirates.com

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        #4
        I agree! I'd replace the RTABs (and subframe bushings and maybe rear wheel bearings) first. If that failed to cure the excess camber, you have to move on to trailing arms.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

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          #5
          Also, it's possible that your subframe is warped. It's happened before. If your rtabs are shot, the car will feel like it is steering from the rear.

          Project M42 Turbo

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