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Can a TH350 or TH400 from a car be used in a K5?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MOABDADC22, Jul 27, 2002.

  1. MOABDADC22

    MOABDADC22 1/2 ton status

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    I can get a smoking deal on a TH350 and TH400. They are from an early 70's muscle car. Can they be bolted to a transfer case. If so, what adapters (I know I will need the adapter to bolt the tranny to the NP20? of my choice.) and parts should I start looking for? Are the out put shafts the same?
     
  2. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    All you have to do is remove the tailshaft and swap in a 4X4 outputshaft.
     
  3. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Yeah it can but you got to swap the out put shaft and that requires the tranny to be disassembled. The truck cases have a stronger bell housing also. This is imprtant because the weight of the case put a lot of stress on it. GM had a problem with bell hosing breaking and sometime between 75 and79 The TH 350 got a Series "K" housing. It had a thinker bell housing with a reinforced lip where the cover bolted on. the cover was casted and had mounting points for a pair of braces the went up to the motor mounts. It pretty well stopped the broken bell housing problems.
     
  4. MOABDADC22

    MOABDADC22 1/2 ton status

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    Is is a PITA to remove? Might as well rebuild it while I am in there. Can an average Joe do it? /forums/images/icons/blush.gif
     
  5. MOABDADC22

    MOABDADC22 1/2 ton status

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    Beuller......................Beuller.....................
     
  6. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    I am an average Joe and I opted NOT to do my own.
     

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