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C1 Front Brake Drums

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  • Art B.
    Expired
    • July 31, 1989
    • 333

    C1 Front Brake Drums

    Last week I pulled the drums from my '61. I noticed that they were not riveted to the hub. Yesterday I pulled the front drums from my '57. They were riveted to the hub in three places. On the '61 drums, there were not even holes for any rivets. When I referred to the ST-12 manual, It states that the front hubs are riveted to the drums. Do I have repro drums on my '61?
  • Mike E.
    Extremely Frequent Poster
    • February 28, 1975
    • 5134

    #2
    Re: C1 Front Brake Drums

    GM changed between 57 and 61. Your 61 should not be riveted. Cast-in part number will allow us to better tell you if you have replacement drums or not.

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    • Art B.
      Expired
      • July 31, 1989
      • 333

      #3
      Re: C1 Front Brake Drums

      Mike: The part number on the '61 drums is 3752623. I cannot find a part number on the '57 drum except for what looks like a W4C.

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