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Rear Brake Cylinders

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  • Ray C.
    Extremely Frequent Poster
    • June 30, 2001
    • 1132
    #1

    Rear Brake Cylinders

    I have been collecting brake cylinders for my 1961 project car. I have noticed numerous listings for NOS # 5450649 "649" rear cylinder on EBAY. I am down-loading pictures, one from EBAY and the other I believe to be an original. Would the difference in appearance be a different casting mold for a service replacement cylinder? Is there any other differences?
    Thanks for any information!
    Ray
    Attached Files
    Ray Carney
    1961 Sateen Silver 270-HP
    1961 Fawn Beige 315-HP
    Tags: None
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    • Bill M.
      Extremely Frequent Poster
      • March 31, 1977
      • 1386
      #2
      Re: Rear Brake Cylinders

      Here's an original 649 from my '59:

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        • Ray C.
          Extremely Frequent Poster
          • June 30, 2001
          • 1132
          #3
          Re: Rear Brake Cylinders

          Thanks! Bill What does the other side of the cylinder have for informatiton? I am just currious what these Ebayers are selling.

          Ray
          Ray Carney
          1961 Sateen Silver 270-HP
          1961 Fawn Beige 315-HP
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            • Bill M.
              Extremely Frequent Poster
              • March 31, 1977
              • 1386
              #4
              Re: Rear Brake Cylinders

              Originally posted by Ray Carney (36314)
              Thanks! Bill What does the other side of the cylinder have for informatiton? I am just currious what these Ebayers are selling.

              Ray
              Ray:

              Just a blank casting, no info.

              Bill
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                • Joe L.
                  Beyond Control Poster
                  • January 31, 1988
                  • 43191
                  #5
                  Re: Rear Brake Cylinders

                  Originally posted by Ray Carney (36314)
                  I have been collecting brake cylinders for my 1961 project car. I have noticed numerous listings for NOS # 5450649 "649" rear cylinder on EBAY. I am down-loading pictures, one from EBAY and the other I believe to be an original. Would the difference in appearance be a different casting mold for a service replacement cylinder? Is there any other differences?
                  Thanks for any information!
                  Ray

                  Ray------


                  I have a strong feeling that this eBay wheel cylinder is some sort of reproduction, GM-authorized or otherwise. Delco-Moraine has not manufactured these wheel cylinders in a VERY long time. The last wheel cylinders available from GM were an "outsourced" piece and didn't have any Delco-Moraine markings on them. Besides, the "Delco-Moraine" embossment on this cylinder just doesn't appear "quite right" to me.
                  In Appreciation of John Hinckley
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                    • Ray C.
                      Extremely Frequent Poster
                      • June 30, 2001
                      • 1132
                      #6
                      Re: Rear Brake Cylinders

                      Thanks! Joe & Bill

                      I purchased some original front and rear cylinders and was just curious to the difference between mine and the EBay cylinders. Some bidders are paying dearly for what might be reproductions.

                      Ray
                      Ray Carney
                      1961 Sateen Silver 270-HP
                      1961 Fawn Beige 315-HP
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                        • John F.
                          Extremely Frequent Poster
                          • March 23, 2008
                          • 2395
                          #7
                          Re: Rear Brake Cylinders

                          Picture on the right are like my original 62 with the large 649.
                          Last edited by John F.; September 18, 2011, 10:45 AM.
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                            • Rod K.
                              Very Frequent User
                              • March 31, 1990
                              • 441
                              #8
                              Re: Rear Brake Cylinders

                              Just an FYI: there are original ''649" cylinders which were tapped for 3/8" hydraulic line fittings instead of the 5/16" used by Corvettes. I think they were for Pontiac.
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