Revshift diff bushing size

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  • J3M93
    E30 Addict
    • Feb 2010
    • 448
    #1

    Revshift diff bushing size

    So I'm about to replace the rear diff bushing with a revshift 80a unit but it seems to me the oem bolt is a lot thinner than the mount hole present in the new bushing while it fits snuggly into the oem bushing, i've emailed revshift about it and they still havent responded, is the new bushing defective?

    Tags: None
    • Herr Faust Schinken
      No R3VLimiter
      • Feb 2012
      • 3580
      #2
      bump my diff bushing is like this too
      88 325is Five Speed
      Lachssilber

        Comment

        • Madhatter
          E30 Modder
          • Oct 2004
          • 966
          #3
          Just happen to have my finned cover and one of their 95A bushes sitting here, one over the top of the other and guess what? just by eye the hole is probably 3mm bigger. Looks like they used the wrong sized crush tube.

          Good thing you picked this up as I would be super pissed if I found out when installing the new subframe.
          Just a little project im working on
          - http://www.lse30.com -

            Comment

            • Herr Faust Schinken
              No R3VLimiter
              • Feb 2012
              • 3580
              #4
              so would you just put a sleeve in there to take up the difference?
              88 325is Five Speed
              Lachssilber

                Comment

                • J3M93
                  E30 Addict
                  • Feb 2010
                  • 448
                  #5
                  Originally posted by Madhatter
                  Just happen to have my finned cover and one of their 95A bushes sitting here, one over the top of the other and guess what? just by eye the hole is probably 3mm bigger. Looks like they used the wrong sized crush tube.

                  Good thing you picked this up as I would be super pissed if I found out when installing the new subframe.
                  hmm, revshift did just get back to me saying that this gap was fine (i emailed them this exact picture)

                  EDIT* just measured mine, gap is only 4mm, maybe it isn't so bad after all
                  Last edited by J3M93; 03-17-2013, 09:06 PM.

                    Comment

                    • J3M93
                      E30 Addict
                      • Feb 2010
                      • 448
                      #6
                      here's revshift's exact response

                      "Yes, it is perfectly fine. The subframe is what puts the differential where it needs to be. We have been making the diff bushings like this for years and it works very well. There is no need to worry about the gap. Once you install it on the car you will realize that it works very nicely."

                        Comment

                        • Herr Faust Schinken
                          No R3VLimiter
                          • Feb 2012
                          • 3580
                          #7
                          Good on you OP I was just about to PM them but looks like that clears that up
                          88 325is Five Speed
                          Lachssilber

                            Comment

                            • Madhatter
                              E30 Modder
                              • Oct 2004
                              • 966
                              #8
                              Not really that happy with the reply though to be honest. If you buy a finned cover for your E30 they will usually warn you to press the bush out because the hole is slotted to suit the Z3 setup. Id rather it still had a tight fit so there was no chance of movement in there.
                              Just a little project im working on
                              - http://www.lse30.com -

                                Comment

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