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What was the first year for the 14 bolt SF 8 lug axle?

Discussion in 'The Garage' started by divorced, Apr 26, 2006.

  1. divorced

    divorced 3/4 ton status

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    What was the first year for the 14 bolt SF 8 lug axle in 3/4 ton trucks? Suburbans?
     
  2. Masiony

    Masiony 1/2 ton status

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    [​IMG]GM CORPORATE 14-BOLT
    The "small" GM 14-bolt has a 9 1/2-inch ring gear diameter. It was used in the rear of 1964-and-later GM pickups, and in the rear of 1984-91 3/4-ton Suburbans.



    i found this in the "tech article" section of this site. next time use a little effort and search.
     
  3. divorced

    divorced 3/4 ton status

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    Hey pal, I'm doing good to find the garage, let alone some tech article!

    And FIY, I did try to search the forums, but "sf" is too short of a term, and Google was little help. So, I did use a little effort... but I'm just not as sharp as some.

    Thanks for the info, though. :waytogo:

    I'm going back to the Lounge now.
     
  4. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Noob flaiming the Vet. Wow.
     
  5. Zeus33rd

    Zeus33rd Smarter than you GMOTM Winner

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    I'm not sure that '64 is correct. My guess is closer to '81 or so.

    And chill with the attitude jackass. This not the place to flame people for not searching, thats Pirate style. Did you forget where you are?:rolleyes:
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    Yeah, I'm going to say 1982 was the first year for the 14SF.

    Nothing before it but the 10/12 bolt and 14FF. 60 even earlier, correct?
     
  7. tarussell

    tarussell 1/2 ton status

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    I'll back up that 1964 is wrong also . I believe it was 1981/1982 when GM first used it as well.

    Tom
     
  8. R77K10

    R77K10 Banned

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    64 is VERy wrong

    was 81/82
     
  9. neverendingproject

    neverendingproject 1/2 ton status

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    I would have to agree with the 1982. I pulled mine out of a 83, but I think the first year was 1982 or 1981.5
     
  10. divorced

    divorced 3/4 ton status

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    Thanks guys for some real info instead of some flaming BS from a smartass college punk. I have never seen a SF in anything '79 and older (that's the years I owned), so I was really doubting the '64 deal.
     
  11. neverendingproject

    neverendingproject 1/2 ton status

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    :thinking: Wait a sec.... im in college. :wink1: :haha:
     
  12. divorced

    divorced 3/4 ton status

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    But are you a smartass punk? :ears:

    :haha: :haha: :haha:
     
  13. 3 on the tree

    3 on the tree 1/2 ton status

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    Eaton rearends were used B4 GM came out with the 14 SF. I think it was EO 52 for the 3/4s and EO 72 was the next step up. I have pulled these rearends out of a bunch of 1st gens, even Burbs.
     
  14. dyeager535

    dyeager535 1 ton status Premium Member

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    Yeah, first gens, but that ended in '72. I'd guarantee there are no 14SF's prior to, oh say, 81.5. :) I like that number.
     
  15. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    i have an 81 that has the 14bsf. never seen them before then.
     
  16. KevinsK5

    KevinsK5 1/2 ton status Premium Member

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    I asked this same question before and everyone told me '81 was the first year. So, I guess I have to say they're right. :D Kevin
     
  17. thatK30guy

    thatK30guy 1 ton status Premium Member

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    I concur. Of all the trucks I've bought and dismantled, '81 marks the first year of the SF. End of story. Find another n00b to bash now. :bow: :haha:
     
  18. atho

    atho 1/2 ton status

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    GM did use the Eaton H0 rearends before the 14 bolt, the H052 was the 3/4 ton version and the h072 was the 1-ton version. I'm pretty sure that no 3/4 tons had semifloat axles until '81, either.

    There was a semifloat Eaton-style axle used before the 12 bolt, but its a fairly rare animal. EDIT: only in half tons.
     

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