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1/2 ton and 3/4 ton chassis

Discussion in '1936-Present Suburban' started by 84CUCV, Dec 15, 2004.

  1. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    I have a 90 1/2 ton 4x4 and i found a 85 3/4 ton. I would like to start with one of them as a winter project. Is there a big differnce in the frame? I have a good 350 and 60 and a 14b just sitting wating for the sub. Let me know what you guys think

    Thanks mike
     
  2. Muddytazz

    Muddytazz 1 ton status

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    To the best of my knowledge, the frames are exactly the same.
     
  3. imiceman44

    imiceman44 1 ton status

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    My knowledge is that the frame on the 3/4 ton is thicker, I don't know if it's enough to matter but I believe if I had both and both were in decent shape I would use the 3/4ton.
    If the 1/2 ton was in better shape then I would use it.
     
  4. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Thanks i thought they 3/4 tons had a better frame. mike
     
  5. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    OK thanks imiceman44
     
  6. woody9

    woody9 1/2 ton status

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    i've got a spec book on the 91's and it indicates a thickness & strength difference between 'em. I think all the length/wideth/exterior measurements are the same (swappable)... but the 3/4 is more beefy!
     
  7. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Thanks woddy9. mike
     
  8. Muddytazz

    Muddytazz 1 ton status

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    Yes everything is swappable between the 2 with no problems. I have a frame specs in my 75 factory manual and in my dads 81 factory manual. I noticed that over the years things changed cause my 75 1/2ton frame is the exact same thickness as my dads 81 3/4ton frame :dunno:
     
  9. imiceman44

    imiceman44 1 ton status

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    Yes as the years go by, they go thinner on the frames and get closer to the limits.
    They used to make things beefy now they make them work.
     

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