GMT Number on Pitman Arm - NCRS Discussion Boards

GMT Number on Pitman Arm

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  • Allen N.
    Very Frequent User
    • January 1, 2003
    • 288

    GMT Number on Pitman Arm

    What is the meaning of the three digit number after GMT on a 3741383 pitman arm for a power steering car? I see them for sale on ebay with 166, 167, 169, 170 and 171. Is this a year designation?

    Thanks,
    Allen
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43211

    #2
    Re: GMT Number on Pitman Arm

    Originally posted by Allen Nichols (39120)
    What is the meaning of the three digit number after GMT on a 3741383 pitman arm for a power steering car? I see them for sale on ebay with 166, 167, 169, 170 and 171. Is this a year designation?

    Thanks,
    Allen
    Allen------

    The "GMT" represents "General Motors-Tonawanda". In this case it refers to the old Tonawanda Forge which was one of 3 GM forging plants in days-of-old. The 3 digits following that represent forging die numbers. Each die set includes a number assigned to that set. That number is used for quality control purposes. The only way to know what the original forging number was for any original forging on a car is to have the original part. There's no other way to know it. Consequently, there's no way any number could be judged as correct or incorrect.
    In Appreciation of John Hinckley

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    • Allen N.
      Very Frequent User
      • January 1, 2003
      • 288

      #3
      Re: GMT Number on Pitman Arm

      Thanks Joe.

      Comment

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