REAR end noise after installing spring/shox

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  • e30s50dan
    R3VLimited
    • Nov 2008
    • 2076

    #1

    REAR end noise after installing spring/shox

    Ok, just installed billys/sport spring and i am hearing noise from rear end.sounds like a stone in tire noise..new tires and new CV joints,but still that damn annoying noise,cant really feel it though! only thing i can think of is maybe since i lowered it a inch or so,that the CV joint are now compressing on the rear end causing the noise.

    I didnt have this noise untill i installed the spings/shox....any ideas???

    thanks
    NASA
    BMWCCA member
    PCA member 25yrs




    1991 318IS slick top
    1997 M3 sedan
    2001 325CI DD

    “whoever turns the wheel the least, wins"
  • e30s50dan
    R3VLimited
    • Nov 2008
    • 2076

    #2
    anyone....I think i need to raise the rear a tad.maybe 10mm...wheres the best place to get spring pads?
    NASA
    BMWCCA member
    PCA member 25yrs




    1991 318IS slick top
    1997 M3 sedan
    2001 325CI DD

    “whoever turns the wheel the least, wins"

    Comment

    • BraveUlysses
      No R3VLimiter
      • Jun 2007
      • 3781

      #3
      Does the frequency of the noise increase with vehicle speed?

      Comment

      • e30s50dan
        R3VLimited
        • Nov 2008
        • 2076

        #4
        yes it does..thought it may have been from the camber of the rear tires now,sitting to low,but i just raised it up 10mm...still have the noise
        NASA
        BMWCCA member
        PCA member 25yrs




        1991 318IS slick top
        1997 M3 sedan
        2001 325CI DD

        “whoever turns the wheel the least, wins"

        Comment

        • BraveUlysses
          No R3VLimiter
          • Jun 2007
          • 3781

          #5
          The camber of a wheel isn't going to cause any sort of noise or vibration issues unless you are rubbing

          Comment

          • TheB1G Lebowski
            E30 Addict
            • May 2009
            • 593

            #6
            Is your rear end full of fluid since you replaced the axles. If so then the bearings are now trashed.
            1989 325i - sold
            1987 RX-7 Turbo II - sold
            1990 325i

            Comment

            • e30s50dan
              R3VLimited
              • Nov 2008
              • 2076

              #7
              yea the rear end was changed to synthetic..this noise ONLY started AFTER I changed springs/shocks..I have no idea!!
              NASA
              BMWCCA member
              PCA member 25yrs




              1991 318IS slick top
              1997 M3 sedan
              2001 325CI DD

              “whoever turns the wheel the least, wins"

              Comment

              • TheB1G Lebowski
                E30 Addict
                • May 2009
                • 593

                #8
                Do you know any one with chassis ears?
                1989 325i - sold
                1987 RX-7 Turbo II - sold
                1990 325i

                Comment

                • TheB1G Lebowski
                  E30 Addict
                  • May 2009
                  • 593

                  #9
                  Where in NC are you?
                  1989 325i - sold
                  1987 RX-7 Turbo II - sold
                  1990 325i

                  Comment

                  • e30s50dan
                    R3VLimited
                    • Nov 2008
                    • 2076

                    #10
                    Live near Greenville nc. You can hear the noise, but can't feel it. Main road was just paved and it is smooth as a pool table. Sounds like a nail in the tire. I did swap tires and no difference. May have a bearing going bad. Noise is very noticeable in rear but seems like it's coming from the drivers rear.
                    NASA
                    BMWCCA member
                    PCA member 25yrs




                    1991 318IS slick top
                    1997 M3 sedan
                    2001 325CI DD

                    “whoever turns the wheel the least, wins"

                    Comment

                    • TheB1G Lebowski
                      E30 Addict
                      • May 2009
                      • 593

                      #11
                      Yeah could just be bad timing for the wheel bearing and when you did your swap. It is odd.
                      1989 325i - sold
                      1987 RX-7 Turbo II - sold
                      1990 325i

                      Comment

                      • Hellabad
                        E30 Modder
                        • Aug 2008
                        • 807

                        #12
                        You bumped the backing plate when you installed the shocks, and now its hitting the edge of the disc brake.


                        Jay from GC
                        Here is my photo gallery answering common questions about Ground Control Suspension, and e30 suspension problems in general.
                        Ground Control Gallery

                        The Ground Control facebook page: Dragged, kicking and screaming into social media to see what happens next.
                        Ground Control facebook page

                        Comment

                        • e30s50dan
                          R3VLimited
                          • Nov 2008
                          • 2076

                          #13
                          Originally posted by Hellabad
                          You bumped the backing plate when you installed the shocks, and now its hitting the edge of the disc brake.


                          Jay from GC
                          no I checked. Nothing rubbing just a harmonic noise like a stone in a tire. Can't feel it either.
                          NASA
                          BMWCCA member
                          PCA member 25yrs




                          1991 318IS slick top
                          1997 M3 sedan
                          2001 325CI DD

                          “whoever turns the wheel the least, wins"

                          Comment

                          • Hellabad
                            E30 Modder
                            • Aug 2008
                            • 807

                            #14
                            Originally posted by e30s50dan
                            no I checked. Nothing rubbing just a harmonic noise like a stone in a tire. Can't feel it either.
                            Could you have accidentally swapped the tires left and right, and now you are hearing the tread?


                            Jay
                            Here is my photo gallery answering common questions about Ground Control Suspension, and e30 suspension problems in general.
                            Ground Control Gallery

                            The Ground Control facebook page: Dragged, kicking and screaming into social media to see what happens next.
                            Ground Control facebook page

                            Comment

                            • e30s50dan
                              R3VLimited
                              • Nov 2008
                              • 2076

                              #15
                              I swapped tires around to make sure I didn't have a bad tire. I also thought that I may be hearing the harmonics from the inside tread since there is more camber now. I can't believe nobody has had this trouble before. What the hell. !!!
                              NASA
                              BMWCCA member
                              PCA member 25yrs




                              1991 318IS slick top
                              1997 M3 sedan
                              2001 325CI DD

                              “whoever turns the wheel the least, wins"

                              Comment

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