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Help with GM part ID#

Discussion in 'The Garage' started by JeffHK5, Aug 11, 2005.

  1. JeffHK5

    JeffHK5 1/2 ton status

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    Bought a bunch of overstock stuff from a local Chevrolet dealer and ran into a part # that I'm having a hard time ID'ing. It's a new GM ring&pinion (4.10) and has a tag tied to it that says it's a "9.5-SF" and the box has a UPC code that says 12471292 . The other local Chevy dealers don't like to just "give out" info without selling me something and I was wondering if CK5 had a resident GM insider. I would like to put it up forsale and not be unsure of what it fits :confused:


    Thanks for the help
    Jeff
     
  2. clarkjw24

    clarkjw24 1/2 ton status GMOTM Winner

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    9.5 SF is the other 14bolt. Its the 14bolt 8 lug simi floater ring and pinion. 3/4 tons had them. They had a 9.5" ring gear vs. the full floaters 10.5
     
  3. JeffHK5

    JeffHK5 1/2 ton status

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    I agree with you what it should be is the semi-floater but what I was wanting is someone that can verify that 12471292 part #. I'd hate to sell to some big dude and it be mis-marked :doah:

    Thanks Jeff
     
    Last edited: Aug 13, 2005
  4. beater_k20

    beater_k20 Banned

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    open the box, and look at the stampings on the ring gear, it will tell you everything you need to know.
     
  5. sweetk30

    sweetk30 professional hooker Premium Member

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    dont forget the 88-up 5 lug under the 454ss trucks and the light duty 6 lugs.:D
     
  6. rocknutah

    rocknutah Registered Member

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    Geared Up

    That number supercedes to a 12479360, 4.10 ratio, 1 ton and some newer 3/4 ton applications.
     
  7. JeffHK5

    JeffHK5 1/2 ton status

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    So it's not a 9.5"SF if it was in 3/4 and 1 ton diffs? Then what diff is it,14FF or is it a AAM diff? The pinion has three bearing journals like a 14FF. I have had 10.5-14FF's apart but I have never put a tape to a ring gear to see which part of the gear measures 10.5, is it to the tips of the teeth?


    Gear is stamped 10 41 079 1


    Thanks Jeff
     
  8. rocknutah

    rocknutah Registered Member

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    The part number shows it to be a componant of a 10 1/2 full floater.
     
  9. JeffHK5

    JeffHK5 1/2 ton status

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    Thanks much rocknutah , these parts went from the "for-sale" pile to the "to-keep" pile :D :D :D



    Thanks again, Jeff
     

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