Need to know part application - NCRS Discussion Boards

Need to know part application

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  • Mike E.
    Extremely Frequent Poster
    • February 28, 1975
    • 5134

    #16
    Re: Need to know part application

    Jerry--
    Are those outer rings, or are they reinforcing rings that go on the back of the hubcap so that you don't distort the hubcap if you tighten too tightly the screws that go from the backside, through that ring, through the hubcap, and into the topped holes in the back of the spinner? Are they like the original reinforcements on the back side of the original 56-62 caps?

    Comment

    • Jerry G.
      Extremely Frequent Poster
      • April 1, 1985
      • 1022

      #17
      Re: Need to know part application

      Mike, they go on the outside. I think the part in question gets bolted into the part I have or possibly the plastic center portion with the crossed flags go into the middle of the part I have. I'll try to attach a photo.

      Comment

      • Joe L.
        Beyond Control Poster
        • February 1, 1988
        • 43193

        #18
        Re: Need to know part application

        Originally posted by Garry Barnes (18531)
        Joe, as usual you are a wealth of information. Based on your insight I am concluding that these were intended for a '65, but could be used for later model years. Here is the photo which clearly shows 511 and it's designated as the part number. Sorry for the size of the pic. can't seem to get it reduced.

        Ernie, thanks for your comments as well.

        Garry-----


        Although sometimes referred to as "casting numbers", "identification numbers", etc., all of these numbers are PART numbers. In the case of a casting, for instance, it is the PART NUMBER for the casting. However, all part numbers seen on a part are not necessarily FINISHED PART NUMBERS. In this case, I believe the 3964511 is the part number for the casting. The casting is then subject to further manufacturing operations to produce the finished piece which is of GM PART #3964515. Unfortunately, that number appears only on the box that the part is supplied in for SERVICE. VERY OFTEN, this kind of situation causes MUCH confusion, but that's how GM did it.
        In Appreciation of John Hinckley

        Comment

        • Garry B.
          Very Frequent User
          • January 1, 1991
          • 660

          #19
          Re: Need to know part application

          Once again, thanks everyone. As I understand from all of this discussion, these were used as replacements for the spinners on hubcaps for model years starting with 65 through probably 67 and were first issued as service replacements starting in 1968? The thread kinda went elsewhere and I want to be sure what they are and that I have taken in everyones thoughts and comments.
          Garry
          Garry Barnes #18531
          '67 Lynndale Blue Coupe- National TF, BG
          ​'67 Sunfire Yellow Coupe- 4 Star Bowtie,


          Comment

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

            #20
            Re: Need to know part application

            There was another one released for Service of knock-off wheels in order to avoid the devastating pedestrian injuries inflicted by "winged projections", including a special hex box-end wrench (scan from Michael Hanson).
            Attached Files

            Comment

            • Joe L.
              Beyond Control Poster
              • February 1, 1988
              • 43193

              #21
              Re: Need to know part application

              Originally posted by Garry Barnes (18531)
              Once again, thanks everyone. As I understand from all of this discussion, these were used as replacements for the spinners on hubcaps for model years starting with 65 through probably 67 and were first issued as service replacements starting in 1968? The thread kinda went elsewhere and I want to be sure what they are and that I have taken in everyones thoughts and comments.
              Garry

              Garry-----


              Just 1965 and 1966. 1967 had no full wheel covers and the rally wheel caps had no spinner.

              I show that these ornaments as well as the SERVICE-only covers complete with ornament were released in late 1969. However, it's possible they were released earlier. In any event, they were released after PRODUCTION use of the original wheel covers was long over with and they had no later PRODUCTION application that I can find.
              In Appreciation of John Hinckley

              Comment

              • Joe L.
                Beyond Control Poster
                • February 1, 1988
                • 43193

                #22
                Re: Need to know part application

                Originally posted by John Hinckley (29964)
                There was another one released for Service of knock-off wheels in order to avoid the devastating pedestrian injuries inflicted by "winged projections", including a special hex box-end wrench (scan from Michael Hanson).
                John-----


                Yes, the nuts were GM #344013, left side, and GM #344013, right side. The wrench was GM #344010 and was absolutely necessary if these nuts were installed (this would constitute a great theft deterrent, too, since what auto booster would have one of these with him?). The nuts and wrench were released in September, 1973 and, at the same time, the original "spinner" nuts were discontinued.

                I've never seen these on a car and I really doubt I ever will. I wonder where all the ones ever sold are now? I'd say this is a case of rare but undesirable parts. Basically, curiosity items.
                In Appreciation of John Hinckley

                Comment

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

                  #23
                  Re: Need to know part application

                  Originally posted by Joe Lucia (12484)
                  I've never seen these on a car and I really doubt I ever will. I wonder where all the ones ever sold are now? I'd say this is a case of rare but undesirable parts. Basically, curiosity items.
                  Joe -

                  The '73 Ferrari Daytona Spyder I bought new (and spent two weeks in Maranello watching them build) had Borrani wire wheels, and about two months after I brought it home I received a package from Italy containing four beautifully-machined and chromed large hex nuts with the Prancing Horse on them and a matching wrench with a LONG 3-piece handle. The instructions with them were in Italian; Ferrari was apparently confused about whether they had to retrofit existing cars or not, and sent the set to me "just in case". They went to the guy I sold the car to several years later - another car I should have kept....

                  Comment

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