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Help me! I've looked everywhere

Discussion in 'The Garage' started by sandawgk5, Jun 9, 2005.

  1. sandawgk5

    sandawgk5 3/4 ton status

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    I cannot find any information on the build date of my 14FF the code stamped on the axle tube is RFJ G0651 and on the casting is 12 dots shaped like a clock with an arrow pointing at the 4 o'clock postion with a 10 cast right beside that. Below the clock is cast the letters GFD with 62 immediatly below that. And finally is 3977323 which I think is the casting number for the 14FF itself. Please help me!!! I also would like to know if all 14FF wheel cylinders mount with one large nut or do the newer ones use 2 bolts reason is mine have 1 large nut to hold them to the backing plates.

    I know I ramble and it is long but any info would be great.

    Thanks

    Ira
     
  2. diesel4me

    diesel4me 1 ton status Premium Member

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    I cant find it either...

    I only have a 1946-1972 chevy dealer parts book,its not listed there--the code is RFJ--but it must be a 73-87 axle (or newer?)..you'll have to call a GM truck dealership and ask the parts counter guy to look up that code....a Hollander Interchange Manual used at junkyards might list the codes too...the dealer is the best bet though.. :crazy:
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Check the numbers on the edge of the ring gear. The last 4 digits will be the build date.

    Rene
     
  4. sandawgk5

    sandawgk5 3/4 ton status

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    I dont know if the gears have been changed out I guess it would get me in the ball park though. It is possible to have 3.73 with gov-bomb from factory.

    Thanks guys.

    Ira
     

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