1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro - NCRS Discussion Boards

1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

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  • Mark P.
    Very Frequent User
    • May 13, 2008
    • 934

    1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

    I have been trying to source correct Pivot Shafts for my Control Arms.

    I have been searching for Corvette 53-62 and Chevy Passenger cars 49-54 Pivot Shaft, Steering Knuckle, Upper Bolt Kit, etc.
    In a couple hours I found NOS parts for 6 of the 8 pivot shafts on my control arms and they were priced within 10% of what reproductions would cost me.

    Here are photos of what came on my car which look identical to the reproductions sold by CC (photo with pink background). I have also included photos of the 2 NOS or NORS Upper Outer Pivot Shafts kits.

    Does anyone know which one was correct for C1 Corvettes ?

    I am thinking that the version in the middle photo with the end caps that have a recess around the zirc fitting is original and the other is a service replacement. Both have GM stamps.

    Would judges even look at this ? The judging guide is not specific.

    From a quality perspective, are the NOS or NORS parts noticeably better ?
    Attached Files
  • Mike M.
    NCRS Past President
    • May 31, 1974
    • 8365

    #2
    Re: 1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

    go with pieces in middle photo. c-1 judges do look for these items when judging. pretty sure there is a description of these pieces in the 61-2 judging manual but am not home to check out the manual. mike

    Comment

    • Mark P.
      Very Frequent User
      • May 13, 2008
      • 934

      #3
      Re: 1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

      Thanks Mike. My 58-60 JM is silent. I'll order the 61-62 manual since I heard that is updated.

      Comment

      • Mike M.
        NCRS Past President
        • May 31, 1974
        • 8365

        #4
        Re: 1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

        mark: i'm home now and i was mistaken. the photos of the front suspension a arm shafts are not in the 61-2 judging manual but rather in the 56-7 judging manual. mike

        Comment

        • Mark P.
          Very Frequent User
          • May 13, 2008
          • 934

          #5
          Re: 1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

          Thanks Mike for clarifying.

          Comment

          • Eric E.
            Very Frequent User
            • November 1, 1998
            • 254

            #6

            Comment

            • Mark P.
              Very Frequent User
              • May 13, 2008
              • 934

              #7
              Re: 1960 C1 Upper Outer Pivot Shaft - NOS vs Service Replacement vs Repro

              I have NOS lower inner shafts that have correct GM casting numbers on the shafts but have PAT'D and P.M. stamped on the end caps. I have seen others in original GM boxes that have the same stamp.

              Any idea what the P.M. Stands for ?

              Comment

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