Breaking axles

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  • jrdeamicis
    E30 Modder
    • Nov 2008
    • 956

    #16
    If you are using an E36 driveshaft you have a ujoint behind the CSB. So it should be able to accommodate its new change.
    Past Car : E30 S50 6 Speed 5 Lug 3.73
    Current : Z3 S50 OBD2 (Smog Legal) 6 Speed BBS RN Dual Ear Diff
    ___________________________________________
    BNB Designs
    Engine Swaps, Fabrication, Innovation, General Repair
    Richmond CA
    Julian 848-248-8029

    Comment

    • nando
      Moderator
      • Nov 2003
      • 34827

      #17
      There should be no change - you want the driveshaft alignment to be straight, and the diff in the same position.

      I have no idea why they suggest the offset bushing - it's not the "right" way to do it. Let's just say, your driveshaft rubs and your pinion is at an angle, mine doesn't rub and everything is straight..
      Build thread

      Bimmerlabs

      Comment

      • Holland
        R3V OG
        • Nov 2008
        • 7176

        #18
        Originally posted by nando
        There should be no change - you want the driveshaft alignment to be straight, and the diff in the same position.

        I have no idea why they suggest the offset bushing - it's not the "right" way to do it. Let's just say, your driveshaft rubs and your pinion is at an angle, mine doesn't rub and everything is straight..
        This is pretty much why I went back to stock subframe height and went with adjustable camber and toe kit.
        1985 M10b18. 70maybewhpoffury. Over engineered S50b30 murica BBQ swap in progress.

        Originally posted by DEV0 E30
        You'd chugg this butt. I know you would. Ain't gotta' lie to kick it brostantinople.

        Comment

        • IrocE30
          Advanced Member
          • Nov 2011
          • 104

          #19
          Originally posted by jrdeamicis
          If you are using an E36 driveshaft you have a ujoint behind the CSB. So it should be able to accommodate its new change.
          I am using a an e36 driveshaft, spaced the diff down 3mm and it just barely clears, still using the offset bushing. Thats how its gonna stay till i find that it causes other problems.

          Comment

          • nando
            Moderator
            • Nov 2003
            • 34827

            #20
            Originally posted by Holland
            This is pretty much why I went back to stock subframe height and went with adjustable camber and toe kit.
            It's really not a big deal.. You need about a half inch longer bolts and washers, that's it. I had a weld in kit, but the shorter bushings brought me back to specs, it wasn't worth the effort to me so i sold the weld in kit.
            Build thread

            Bimmerlabs

            Comment

            • nando
              Moderator
              • Nov 2003
              • 34827

              #21
              Originally posted by IrocE30
              I am using a an e36 driveshaft, spaced the diff down 3mm and it just barely clears, still using the offset bushing. Thats how its gonna stay till i find that it causes other problems.
              Your pinion is still at an angle to the driveshaft, which can cause premature pinion bearing wear.
              Build thread

              Bimmerlabs

              Comment

              • IrocE30
                Advanced Member
                • Nov 2011
                • 104

                #22
                I gonna look into i, since i did do a motor swap the driveshaft angles could all be screwed up depending on what motor mounts, tranny mounts i used. Im gonna use an angle finder and get the get them all level and space acoordingly.

                Comment

                • nrubenstein
                  No R3VLimiter
                  • Feb 2009
                  • 3148

                  #23
                  Originally posted by Holland
                  This is pretty much why I went back to stock subframe height and went with adjustable camber and toe kit.
                  Of course, what you lost is the improved roll center geometry that you can only get by shifting the subframe up.
                  2006 GMC Sierra 2500HD 4WD LBZ/Allison
                  2002 BMW M3 Alpinweiß/Black
                  1999 323i GTS2 Alpinweiß
                  1995 M3 Dakargelb/Black
                  - S50B32/S6S420G/3.91
                  1990 325is Brilliantrot/Tan
                  1989 M3 Alpinweiß/Black

                  Hers: 1996 Porsche 911 Turbo Black/Black
                  Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

                  sigpic

                  Comment

                  • Holland
                    R3V OG
                    • Nov 2008
                    • 7176

                    #24
                    Originally posted by nrubenstein
                    Of course, what you lost is the improved roll center geometry that you can only get by shifting the subframe up.
                    I think 9mm to 12mm would hardly be noticeable, especially considering it's a small section compared to an entire car. I'm more concerned with driveline angles at that point.
                    1985 M10b18. 70maybewhpoffury. Over engineered S50b30 murica BBQ swap in progress.

                    Originally posted by DEV0 E30
                    You'd chugg this butt. I know you would. Ain't gotta' lie to kick it brostantinople.

                    Comment

                    • Adrian_Visser
                      R3VLimited
                      • Jun 2006
                      • 2823

                      #25
                      Who is running raised subframe bushings+weld on camber and toe adjusters?

                      I am about to install both, I have heard that it gets pretty tight between the adjusters and the body of the car when the subframe is raised. I hope I don't have to cut off any of the adjuster.

                      '89 Alpine S52 with goodies

                      Comment

                      • Holland
                        R3V OG
                        • Nov 2008
                        • 7176

                        #26
                        Originally posted by Adrian_Visser
                        Who is running raised subframe bushings+weld on camber and toe adjusters?

                        I am about to install both, I have heard that it gets pretty tight between the adjusters and the body of the car when the subframe is raised. I hope I don't have to cut off any of the adjuster.
                        Idk about eccentrics, but the IE posi-lock kit will touch with stock height.
                        1985 M10b18. 70maybewhpoffury. Over engineered S50b30 murica BBQ swap in progress.

                        Originally posted by DEV0 E30
                        You'd chugg this butt. I know you would. Ain't gotta' lie to kick it brostantinople.

                        Comment

                        • surebimmer
                          E30 Modder
                          • Jan 2004
                          • 978

                          #27
                          When i raised the subframe on my e30 m3 the driveshaft rubbed the gas tank as well. This is what i did.

                          I got (4) 40mm M12 x 1.5thread pitch bolts from McMaster.com. Then I found 1/2 inch bearing sleeves at my local ACE hardware store.

                          They work prefect to space the diff down, 1/2 a inch is 12.7mm.



                          I bought (4) 40mm M12 x 1.5 tread pitch bolts from McMaster.com



                          Then installed them and now my drive shaft will spin freely.


                          Comment

                          • Adrian_Visser
                            R3VLimited
                            • Jun 2006
                            • 2823

                            #28
                            Originally posted by Holland
                            Idk about eccentrics, but the IE posi-lock kit will touch with stock height.
                            That's what I bought should be interesting fitting them.

                            '89 Alpine S52 with goodies

                            Comment

                            • Holland
                              R3V OG
                              • Nov 2008
                              • 7176

                              #29
                              Originally posted by Adrian_Visser
                              That's what I bought should be interesting fitting them.
                              I'm at stock height and the camber adjusters are touching the floor pan.
                              1985 M10b18. 70maybewhpoffury. Over engineered S50b30 murica BBQ swap in progress.

                              Originally posted by DEV0 E30
                              You'd chugg this butt. I know you would. Ain't gotta' lie to kick it brostantinople.

                              Comment

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