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th400 32-205 10 sline?? Help

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by quicker, Feb 17, 2007.

  1. quicker

    quicker 1/2 ton status

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    Adapting th400 32 to 205 10 spline.??


    or direct me to a part source.
    Thanks
    Quick
     
  2. imiceman44

    imiceman44 1 ton status

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    I don't think there is a coupler to get you going.
    You will need to buy the 32 spline input shaft and bore out the Tcase to accept the bigger shaft. Cost about $300-350
    Or you could buy my tcase ready to go.
    :D
     
  3. quicker

    quicker 1/2 ton status

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    Your case comes with the adapter??

    You sac boys always seem to have the answer....

    I can bore it out no problem and was going to open it up to inspect it anyway...but will it work with the regular th400 205 adapter/sleeve after I modify it for the 32 spline?
     
  4. imiceman44

    imiceman44 1 ton status

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    The adapter you have on the th400 will work, the 32 spline 205 is female so no sleeve.
    :D
    Do you already have the adapter on your th400?
    Is it the 8 bolt on the 205 side or 6 bolts?
     
  5. quicker

    quicker 1/2 ton status

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    The 205 is a 10 spline off a sm 465 adapter included. I know I should have used the sm465..Yes and I have all the parts to make it a stick including the stock pedal mounts.

    I wanted the th400.

    The core I had was not a 4X4 case so I figured I would convert as I went...LOL

    Anyway I am going to dig a bit more before I start over.

    My parts are all at the transmission shop so I will get the information tomorrow. I also planned to convert it to a lowmax 3:1 later.






     
  6. imiceman44

    imiceman44 1 ton status

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    If you want to convert to lowmax, do it now, you have to buy their case and some shafts and gears anyway so do it before you spend too much money on a case you will be replacing.
    I am the one that wants to sell you the case but I still advise you to pass if your future plans include a lowmax.
    :o
     
  7. quicker

    quicker 1/2 ton status

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    Right now I have a perfectly good th350 and 203 in the truck I can use as I assemble parts so I might do the lowmax conversion before I swap in my th400 and 205.



    As for the adapter is it better for me to go long or short? I figure short but I wanted some opinions.



    Thanks for the advice and help.
     
  8. imiceman44

    imiceman44 1 ton status

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    Another satisfied UNcustomer :D
     
  9. quicker

    quicker 1/2 ton status

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    lol I may still bag that sb400. The machine shop will tell me on monday.
     
  10. imiceman44

    imiceman44 1 ton status

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    So do you want me to take the heads of and check the overbore?
    or you will tell me if your machine shop tells you you need a new block?
     

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