Looking for parts schematic for 4.10 small case LSD

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  • ahlem
    Grease Monkey
    • Sep 2008
    • 369

    #1

    Looking for parts schematic for 4.10 small case LSD

    Also looking for housing cover for ring gear side. Part # 33141210616.
    Appears to be used on all kinds of similar vintage bmw models.
    FYI,
    I had to go to the archives on realoem.com and use a 6 series from the mid 80's to find an individual component schematic.
    I entered the part numbers on the www and got a cross reference to lots of lsd models. Didn't cross reference well on realoem.com
    Hopefully this will be a pretty generic (cheap) part to purchase used.
    If anyone has one, please PM me.
    Thanks.
    Last edited by ahlem; 07-18-2016, 12:25 PM. Reason: added part number
  • ahlem
    Grease Monkey
    • Sep 2008
    • 369

    #2
    This part with or without the bearing is what I'm looking for.
    Thanks for the photo Jaker.
    Attached Files

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    • SkiFree
      R3VLimited
      • Jun 2011
      • 2766

      #3
      There are two varieties of top caps for the small case diffs. The one you have pictured is the later variety (so one from an E21 LSD would not work).

      I think I have a side shot of the two here ....
      http://www.bmw2002faq.com/articles.h...ial-build-r74/


      In regards to your issue, your best bet would be buying a billet one from Rob Inhout. They are extremely under-priced considering his expertise (click here for his backstory). Recently an eastern-european place copied it but they were terrible (tolerances weren't even close). New ones are NLA from the dealer.

      Here's Rob's piece.
      ADAMS Autosport

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      • ahlem
        Grease Monkey
        • Sep 2008
        • 369

        #4
        Great info Thanks.
        Now I have to figure out where the 4.10 LSD came from originally.

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