Knocking from the rear

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  • russhixmo
    Grease Monkey
    • Jun 2011
    • 336

    #1

    Knocking from the rear

    Just picked up an 84 325e with low miles and when it gets to about 3500 a strange knocking and vibration comes from the rear end, almost sounds like a drive shaft out of balance bu it only does it at higher rpm's. Any thoughts?
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    My first thought would be a bad center support bearing or binding u-joints in the drive shaft.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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    • russhixmo
      Grease Monkey
      • Jun 2011
      • 336

      #3
      A very Likely possibility I'll look into it

      Comment

      • kalib0y
        No R3VLimiter
        • Dec 2004
        • 3620

        #4
        check them drive shaft guibo
        95 7.1L 16V E36 M3
        Motorsport Hardware ***Wheel studs and Spacers!!!--->FOR SALE 4/5 Lug Stud Conversion Kits available CLICK HERE
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        • russhixmo
          Grease Monkey
          • Jun 2011
          • 336

          #5
          I'm betting it's the center support bearing, I'd think a gweebo would make the noise all the time or at a certain speed verses a certain rpm

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          • russhixmo
            Grease Monkey
            • Jun 2011
            • 336

            #6
            Ended up being a destroyed gweebo and a bad center support bearing, 45$ for of fix, not bad.

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