Is this a correct rear member - NCRS Discussion Boards

Is this a correct rear member

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  • Calvin C.
    Expired
    • May 31, 2002
    • 240

    Is this a correct rear member

    My newly aquired 72 has a rear member that reads 3871375 I was told by a friend that he thinks it should be 3899143. Do I have the wrong rear or did I find the wrong number. This was located on the rear of the unit near suport at top.

    cal
  • Warren F.
    Expired
    • December 1, 1987
    • 1516

    #2
    Re: Is this a correct rear member

    Cal:

    According to Colvins book Corvette by the Numbers. Your Axle Center section Casting number should be 3899143 for 1967 thru 1975 years.

    Comment

    • Calvin C.
      Expired
      • May 31, 2002
      • 240

      #3
      Re: Is this a correct rear member

      So what is 3871375, Did I look in the wrong location?

      cal

      Comment

      • Warren F.
        Expired
        • December 1, 1987
        • 1516

        #4
        Re: Is this a correct rear member

        I cannot find that number in my 1953 thru 1972 parts book. However 3871374 is Axle Housing Cover with Filler Plug, applicable for 63 thru '74 Corvette.

        Comment

        • Calvin C.
          Expired
          • May 31, 2002
          • 240

          #5
          Re: Is this a correct rear member

          I must be looking at the axel housing, but is it corect?
          cal

          Comment

          • Warren F.
            Expired
            • December 1, 1987
            • 1516

            #6
            Re: Is this a correct rear member

            Cal:

            Sometimes the part number and casting number can be close, such as this. I just don't know, you need Joe Lucias expertise here.

            Comment

            • John H.
              Beyond Control Poster
              • December 1, 1997
              • 16513

              #7
              Re: Is this a correct rear member

              Two different parts here - the rear COVER (that the spring attaches to) is casting #3871375 (at top rear of the cover), and the differential housing is casting #3899143 (driver's side, behind strut rod bracket).

              Comment

              • Warren F.
                Expired
                • December 1, 1987
                • 1516

                #8
                Thanks, John *NM*

                Comment

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