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Tranny to Tsfr Case adapter. What am I missing?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by bigasschunk, Jan 14, 2003.

  1. bigasschunk

    bigasschunk Registered Member

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    This is kind of a newbie question, but to my defense most of my truck came in pieces, but it's obvious to me that I am missing something to adapt the NP203 to the TH400. TH400 has four bolts comming directly out the back with an about 2-3 inch spacer? Well the NP203 has some kind of much larger bolt pattern? What gives and what do I need to get my hands on to make this all mount up?
    /forums/images/graemlins/confused.gif
    /forums/images/graemlins/1zhelp.gif
    Thanks,

    Kevin
     
  2. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    Are you sure it's a TH400? They have a 6 bolt octagon shaped pattern on the tail, a TH350 and TH700 both have a 4 bolt sqare pattern.
     
  3. MJF

    MJF 1/2 ton status

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    I agree with nverenuf. The 4 bolt holes is what the 350 has. Ifyuo do happen to have a 350, I have a 350/203 adapter at the house. I can take a pic of it for you or if you need it, I'll give it to you.

    PM me if you need a pic or the part in case i don't check this thread.
     
  4. u2slow

    u2slow 1/2 ton status

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    The TH400/203 adapter will have 6 holes on the tranny side. This is pic of the TH350/203:
    [​IMG]
     
  5. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Hey Mike, if Kevin doesn't need or take you up on the adapter I could use it. I am gathering parts for my future doubler set-up. Let me know, thanks Scott
     

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