Differential Mounting Bolt Sizes

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  • MisterMiniS
    Grease Monkey
    • Oct 2010
    • 397

    #1

    Differential Mounting Bolt Sizes

    I need some help determining what the bolt sizes are for the differential. RealOEM has the top two at M12x1.5x25mm but does not say what the lower two are. Additionally, I'm curious what the nut/washer sizes are for the associated lower bolts. Thanks.



    1989 325i Alpine White
    69 STX
  • Mr. Tasty
    No R3VLimiter
    • Jul 2011
    • 3421

    #2
    the bottom bolts thread into the rear subframe, so no nut needed. The bolts and washers are exactly the same as the backmounted bolts. If you look on realoem at part number 18, is says it requires 4 for assembly.
    http://realoem.com/bmw/showparts.do?...24&hg=33&fg=10
    2014 Alpine White 335i MSport
    (Daily Driver)
    Full Mperformance Aero

    2007 Black Sapphire Metallic E92 335i (6MT)
    KW V2 Coilovers
    VRSF Catless Downpipes

    Comment

    • MisterMiniS
      Grease Monkey
      • Oct 2010
      • 397

      #3
      Awesome, that makes a ton of sense. Not sure why after staring at it for hours I assumed it was a bolt through and a nut. Found this picture that pretty much confirms what you say.



      Thanks!


      1989 325i Alpine White
      69 STX

      Comment

      • Mr. Tasty
        No R3VLimiter
        • Jul 2011
        • 3421

        #4
        Originally posted by MisterMiniS
        Awesome, that makes a ton of sense. Not sure why after staring at it for hours I assumed it was a bolt through and a nut. Found this picture that pretty much confirms what you say.



        Thanks!
        :up:
        2014 Alpine White 335i MSport
        (Daily Driver)
        Full Mperformance Aero

        2007 Black Sapphire Metallic E92 335i (6MT)
        KW V2 Coilovers
        VRSF Catless Downpipes

        Comment

        • pbsun
          Member
          • Jul 2011
          • 96

          #5
          Wow that's a nice under belly

          Comment

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