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To Trans or Not to Trans

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by PsRumors, Nov 25, 2006.

  1. PsRumors

    PsRumors 1/2 ton status

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    Location:
    Cartersville, GA
    Stats - '85 K20 Burb 350(cali), 700r4 NP208, 10 bolt, 14 bolt SF, 3.73

    I have the 350 ready to come out just have to go get the hoist from my neighbor. I have a fresh 454 on the way, it will be here Monday. I am having second thoughts on the 454 and just do a 383. Either way it will have much more torque than stock. Will not have emissions equipment.

    The trans shifts very good currently. But while I am here do I go ahead and change the tranny? If so, 700r4 or 4l80e? And if I do, who's? There are 100s of people building these trannys. I don't really have the money to do the trans but thinking it may be smart while I am here.

    Any input?
     
  2. boz42

    boz42 1/2 ton status GMOTM Winner

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    i would run what u got till it goes out, u never know, it may last a while. projects can snowball & i am the world's worst about it. if u do the tranny now u will be w/ out your rig even longer.
     
  3. roadnotca

    roadnotca 3/4 ton status

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    Is that an original truck? If so, how many miles?
     
  4. PsRumors

    PsRumors 1/2 ton status

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    Suppose to be 80k original which is possible with the condition of everything.
     
  5. smokkey1

    smokkey1 1/2 ton status

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    I thought 3/4 subs came with th400's?
    can someone confirm this...
     
  6. PsRumors

    PsRumors 1/2 ton status

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    My Options sticker in the glove box confirms it was available.

    [​IMG]
     
  7. roadnotca

    roadnotca 3/4 ton status

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    Just my .02 but I'd say; a)454/4L80e/D60/14b or b)383 or 350/700R4/10b. I think the 454 will destroy a 10b (weight).:D
     
  8. PsRumors

    PsRumors 1/2 ton status

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    Either way I go future plans are D60 / 14b FF. Surely though an extra 300 lbs out front wont bring down the 10b (least for a while). I see so many of these vehicles with 35s winches and big bumpers running without any problems. I hope the 10b can stand for a while.
     
  9. roadnotca

    roadnotca 3/4 ton status

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    Rolling down the street, 300 lbs is 300 lbs. On trails, 300 lbs X drop starts to land like a ton. For a while is correct, right until the spring blows right through the axle tube, or the ball joints. 454,6.2/6.5,500C over a 10b = short life.:D
     

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