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cucv t400

Discussion in '1982-Present GM Diesel' started by KRUM, Oct 17, 2002.

  1. KRUM

    KRUM 1/2 ton status

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    i'm going to buy a t400 208 off of a guy with a cucv what parts do i need to tell him to pull so i can get all of the conversion stuff with it to replace my 700r
    thanks for all yalls help,
    Jerry
     
  2. imiceman44

    imiceman44 1 ton status

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    get the flexplate with the torque convertor.
    it's six bolts instead of 3.
     
  3. Tybee

    Tybee 1/2 ton status

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    Im not for sure but I think you might need the crossmember.
     
  4. KRUM

    KRUM 1/2 ton status

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    WHAT ABOUT THE STUFF FOR THE KICKDOWN WHAT ALL IS REQUIRED TO MAKE IT WORK. THANKS FOR THE HEADS UP ON THE FLEX PLATE I HAD NO IDEA!! /forums/images/graemlins/thumb.gif
    LATER
    Jerry
     
  5. BARRAZA

    BARRAZA 1/2 ton status

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    A turbo 400 needs a vacuum source for the modulator and a kickdown switch. If you are putting it back into a diesel, make sure you get the vacuum regulator valve off the injector pump to have proper vacuum signal, if its going in a gasser you will just hook the vacuum line from the modulator to an unported vacuum source at the intake. The kick down is electrical, some diesels mounted it on the injector pump and some were mounted on the pedal in the cab, neither is the easiest way for a gas motor so dont bother. Use a carb mounted switch.
     
  6. KRUM

    KRUM 1/2 ton status

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    ITS GOING BACK INTO ANOTHER DIESEL THANKS A LOT,
    JERRY
     
  7. u2slow

    u2slow 1/2 ton status

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    My kickdown on my '84 Burb (6.2L/TH400) is on the pedal itself.
     
  8. KRUM

    KRUM 1/2 ton status

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    the guy doesn't have the vacuum regulator. how much do they cost & where would i get one.
    thanks,
    Jerry
     
  9. BARRAZA

    BARRAZA 1/2 ton status

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    I am still looking for one. Mine was missing off the pump when I bought it.
     
  10. DieselDan

    DieselDan 1/2 ton status

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    It's a small plastic device that mounts on the tthrottle shaft of the injection pump. (Looks similiar to a throttle position switch on a fuel injection gas motor) I wouldn't think they would cost too much new.
     
  11. BARRAZA

    BARRAZA 1/2 ton status

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    I didnt think it would be expensive either but my dealer quoted almost $90!! Maybe they were looking up the wrong part, they're not to smart in there.
     
  12. KRUM

    KRUM 1/2 ton status

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    either of yall have any pics /forums/images/graemlins/laugh.gif?
    thanks
    Jerry
     
  13. carolina custom

    carolina custom 1/2 ton status

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    Call the Diesel Depot(800-553-8192). I got a nice used one from them for around $30 shipped /forums/images/graemlins/smirk.gif

    Marc
     
  14. KRUM

    KRUM 1/2 ton status

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    thanks alot that'll save me a few bucks. is there anyone that has done this swap before that could give me a few pointers(trouble areas)
    thanks,
    Jerry
     
  15. 4xfreak

    4xfreak Registered Member

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    Well I hope you don't plan on using the 208 because mine developed a crack in the case while doing some mild pulling in 4wd. Instead just buy the t400 and look for a 205 to mate to it. Aluminum housings are no good. /forums/images/graemlins/truck.gif
     
  16. calcide

    calcide 1/2 ton status

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    Doesn't a t400 have an aluminum housing?

    Better go with an SM465: 100% beef.
     
  17. KRUM

    KRUM 1/2 ton status

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    well i happen to like the 208 t-case but i have a 241 off my 700r that i'm going to use insteadas far as the sm 465 i keep those reserved for the rigs i actually take to the woods but you are right bulletproof if i eat another auto i'll be putting the 465-205 out of the garage in my K-5.
    oh yeah was there ever a T350 tranny used behind the 6.2L?
    thanks alot,
    Jerry
     
  18. imiceman44

    imiceman44 1 ton status

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    Not that I know of.
    The need to develop a four speed came with the light duty trucks with the 6.2 and at that point it wasn't called overdrive. I have the 82 and it has 1,2,3 & D.
    You might find an odd ball but I doubt it.
     
  19. BARRAZA

    BARRAZA 1/2 ton status

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    Thanks Carolina Custom, Diesel Depot is shipping me one today, helluva lot cheaper than the dealer.
     
  20. KRUM

    KRUM 1/2 ton status

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    you didn't get their last one did you /forums/images/graemlins/mad.gif
    later,
    Jerry
     

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