Rear hubs

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  • dave.a.cote
    Wrencher
    • Jul 2009
    • 246

    #1

    Rear hubs

    I am rebuilding the back end of my e30 and noticed that my hubs are different on the left and right sides. The one on the right is longer by ~1/2" compared to the one on the left. Also, the brake rotor is different to accommodate the different length hubs.

    I am assuming that this is unusual. Could I have an IX hub on the right? To correct the problem, would I only have to change the hub and the brake rotor or is there more?

    Dave
    1988 325 auto-x car
    1989 325ix winter car
    1991 525i summer car
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    That is definitely not right. I don't know which side is correct, but one needs to be changed. My suspicion would be that one of the rear trailing arms was replaced with the wrong assembly. I don't know what car you have, but if it has ABS check to see if both sides have an ABS sensor. If one doesn't, that will be the wrong trailing arm & hub. In a like manner if this is a non-ABS car the side with the sensor mounting point will be wrong.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • dave.a.cote
      Wrencher
      • Jul 2009
      • 246

      #3
      The car has ABS both sides - everything seems to work as it should but one wheel is spaced 1/2" out towards the fender. After thinking about it for a while I have convinced myself that at some point in the cars history, the passengers side was replaced with IX parts. I will have to find a hub some time and fix it. I think all I need is the hub and the brake rotor.

      Dave
      1988 325 auto-x car
      1989 325ix winter car
      1991 525i summer car

      Comment

      • Aptyp
        R3V OG
        • Feb 2008
        • 6584

        #4
        you probably have different bearings... one trailing arm is 84-85 and other is 86+

        What year is your car?

        Comment

        • dave.a.cote
          Wrencher
          • Jul 2009
          • 246

          #5
          The car is an 88. I just replaced the bearings which is when I got a better look at everything. As far as I can tell t he trailing arms are the same.
          1988 325 auto-x car
          1989 325ix winter car
          1991 525i summer car

          Comment

          • dave.a.cote
            Wrencher
            • Jul 2009
            • 246

            #6
            As a result of this discovery - I am now looking for a replacement for my IX hub.

            1988 325 auto-x car
            1989 325ix winter car
            1991 525i summer car

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