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Numbers on Muncie Transmission

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  • Bob H.
    Very Frequent User
    • July 31, 2000
    • 789

    Numbers on Muncie Transmission

    Just checking numbers on an LT1 I bought. The side cover is 3952648. Tail 3978764, Main 3925661. I think it is an M21. Has anyone seen a code like this photo? Perhaps a rebuild number? Says CCI 3790 and then what looks like a reverse S. Doesn't like original was ground off but maybe
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  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43193

    #2
    Re: Numbers on Muncie Transmission

    Originally posted by Bob Hoffman (34576)
    Just checking numbers on an LT1 I bought. The side cover is 3952648. Tail 3978764, Main 3925661. I think it is an M21. Has anyone seen a code like this photo? Perhaps a rebuild number? Says CCI 3790 and then what looks like a reverse S. Doesn't like original was ground off but maybe
    Bob----

    If there is no VIN derivative stamped on the case, then this is likely a SERVICE replacement main case.
    In Appreciation of John Hinckley

    Comment

    • Patrick B.
      Extremely Frequent Poster
      • August 31, 1985
      • 1986

      #3
      Re: Numbers on Muncie Transmission

      I have a 67 service case that has nothing stamped on it, but I have seen the CC1 mark on later cases. It must be just a service case because a whole service trans would have the Muncie date stamp but no vin.

      Comment

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