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TH350/203 and TH400/208 t-case adapter question.

Discussion in 'The Garage' started by MOABDADC22, Jun 29, 2004.

  1. MOABDADC22

    MOABDADC22 1/2 ton status

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    Will a t-case adapter from a TH350/203 work on a TH400/208 or will I have to buy one for the TH350? /forums/images/graemlins/1zhelp.gif
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    Re: TH400/203 and TH350/208 t-case adapter question.

    nope won't work, the output on a th400 is a 6 bolt roundish and the th350/700r4 is a 4 bolt square.
     
  3. HarryH3

    HarryH3 1 ton status Author

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    Are you trying to put a 208 behind a Turbo 350? If so, the 208 from behind a Turbo 400 won't work. The output shaft of the Turbo 350 has 27 splines, while the output shaft of the Turbo 400 has 32 splines. So the 208 that was behind a Turbo 400 won't bolt up to a Turbo 350 unless you change the input shaft on the 208. /forums/images/graemlins/frown.gif
     
  4. k5blazerus

    k5blazerus 1/2 ton status

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    I have a th400 to a 208 adapter for sale if you need one
     

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