Wheel hop?

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  • JFarhanbod
    R3VLimited
    • Jan 2012
    • 2151

    #1

    Wheel hop?

    Anytime I accelerate from a stop, the rear right wheel starts shaking and you can feel it throughout the entire car. It's fine after that though. The car also seems a bit bouncy when driving slow but that might just be my suspension. Wheels are balanced so it isn't that. I'm thinking rtab, subframe bushing or diff. I don't wanna just start throwing parts at it though. Any ideas on what it can be?
  • JFarhanbod
    R3VLimited
    • Jan 2012
    • 2151

    #2
    A couple things worth mentioning. Car is automatic, diff is open, all suspension/steering parts in the front are new ( minus swaybar stuff)

    Rear has 6" coilover springs(700lbs) with no adjusters. Rear shocks are w124 bilstein sports. No other things were changed back there.

    Comment

    • IRON-E
      I waste 90% of my day here and all I got was this stupid title
      • Dec 2007
      • 16548

      #3
      Bald tires have no grip.
      @IRON-E30 aka Edwin:D

      Comment

      • efficient
        No R3VLimiter
        • Feb 2012
        • 3312

        #4
        you sure your lugs are tight and not coming loose

        Comment

        • JFarhanbod
          R3VLimited
          • Jan 2012
          • 2151

          #5
          Originally posted by IRON-E
          Bald tires have no grip.

          That's exactly what it feels like but the tires are brand new 595 rsr's. It did it on my bcaps too.

          Comment

          • JFarhanbod
            R3VLimited
            • Jan 2012
            • 2151

            #6
            Originally posted by efficient
            you sure your lugs are tight and not coming loose

            Yep they're tightened

            Comment

            • RedReplicant
              Wrencher
              • Oct 2009
              • 270

              #7
              My 240SX did this when the subframe bushings were completely destroyed. If you're gonna replace one of the bushings back there you may as well drop the subframe and do the offset subframe bushings, RTABs, and diff bushing all at once.
              91 318is - Gone
              16 VW GTI
              07 Aprilia Tuono

              Comment

              • Luke Girard
                Mod Crazy
                • Dec 2013
                • 738

                #8
                I had the same problem with my e30 and I was told possibly the driveshaft, shocks, bushings, or axles. You should have a shop look at it if you can't figure it out yourself. If you can find the problem props too you! =) hope that helps check those things out!

                Sent from my DeLorean

                Comment

                • mcr_driver
                  R3V Elite
                  • Mar 2009
                  • 4491

                  #9
                  Get a jack get down there and check the bushings sound like the right side went bye bye. If the subframe stuff is good maybe the wheel bearing? No whirring noise I assume to rule that out?

                  Comment

                  • AndrewBird
                    The Mad Scientist
                    • Oct 2003
                    • 11892

                    #10
                    Blown shocks would cause this.

                    Comment

                    • JFarhanbod
                      R3VLimited
                      • Jan 2012
                      • 2151

                      #11
                      Originally posted by NitroRustlerDriver
                      Blown shocks would cause this.

                      Shocks are brand new w124 billy sports


                      Gonna check the bushings in a bit

                      Comment

                      • Gesture
                        Noobie
                        • Mar 2014
                        • 18

                        #12
                        It could be worn out rear shock mounts or improperly installed aftermarket rear shock mounts.
                        FIST CAN BE A VERB.

                        Comment

                        • JFarhanbod
                          R3VLimited
                          • Jan 2012
                          • 2151

                          #13
                          Checked the diff bushing, it's toast. Not sure about the subframe bushings the look like they might be bad too.

                          Rear shock mounts are billet and seemed to be be in good condition

                          Comment

                          • JFarhanbod
                            R3VLimited
                            • Jan 2012
                            • 2151

                            #14
                            My sense of feel sucks haha. Went to JMP turns out it's the csb. Going to do the entire rear end soon anyways though.

                            Comment

                            • MR 325
                              Moderator
                              • Oct 2003
                              • 37826

                              #15
                              Right when I read your post I was going to say CSB!
                              BimmerHeads
                              Classic BMW Specialists
                              Santa Clarita, CA

                              www.BimmerHeads.com

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