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14bff--3/4ton vs. 1 ton???

Discussion in 'The Garage' started by nau81blazer, Jun 11, 2004.

  1. nau81blazer

    nau81blazer 1/2 ton status

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    Hello all,
    Like the title says, is there any difference between a 14bff in a 3/4 ton truck vs. a 1 ton truck? Sorry if it's a newbie question, but hey, i'm a newbie. /forums/images/graemlins/grin.gif /forums/images/graemlins/whistling.gif

    Thanks for the info!

    --Adam /forums/images/graemlins/k5.gif
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Spring perches are different widths and the shock mounts are opposite but thats it. If you have a 1st Gen you want a 1 ton for direct bolt-in, if you have a 2nd Gen you want a 3/4 ton for direct bolt-in.
     
  3. unclematty

    unclematty 1/2 ton status

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    I don't think there is a big difference, maybe gear ratios, I have not hada lot of experience with 14"s. anyone else /forums/images/graemlins/whistling.gif
     
  4. Hossbaby50

    Hossbaby50 3/4 ton status

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    73-01, get a 3/4 ton 14bff
    69-72, get a 1 ton 14bff

    The other difference is shock mounts (mentioned above) and brake size.

    3/4 ton's had either 11.5 or 13" brakes
    1 tons had 13" brakes with wider shoes then the 3/4 variety

    The other thing to look for is the open carrier or govlock carrier. Govlocks aren't as desireable. They are weaker and not a fulltime locker. You can identify by

    Govlock: G80 vehicle option code & 3 pin crossshaft in the carrier

    Open: 4 pin crossshaft in the carrier.

    Harley
     
  5. smokkey1

    smokkey1 1/2 ton status

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    can you swap out the gov-loc and get an open Carrier so you can put in an detriot?
     
  6. Hossbaby50

    Hossbaby50 3/4 ton status

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    yes, you can swap a govlock carrier for an open carrier.

    Harley
     
  7. smokkey1

    smokkey1 1/2 ton status

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    cool, last question say you found a 14ff with 4.10 or 4.56's with a gov-lock can you swap those gears on the open carrier?


    sorry for the hijack.
     
  8. Hossbaby50

    Hossbaby50 3/4 ton status

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    Yes, as long as the new carrier is the 4.10 or the 4.56 carrier. They are two different carriers.

    4.10 and down (numberically) and 4.56 and up are two seperate carriers. 4.56 gears will not work with a 4.10 carrier and vice versa.

    So if you get 4.56 gears in a factory gear set you must swap in a 4.56 open carrier.

    4.56-5.13 is one carrier
    4.10-3.__ is another. They will not interchange between carriers.
     

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