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T400 to a NP203 adapter needed

Discussion in 'Parts & Trucks Wanted' started by chvyhs, Sep 12, 2004.

  1. chvyhs

    chvyhs 1/2 ton status

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    /forums/images/graemlins/1zhelp.gif
    So, does anyone have a T400 to a NP203 adapter to sell?
     
  2. dhdescender

    dhdescender 1/2 ton status

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    I've got one. 50+Shipping (same as I bought it for).
     
  3. chvyhs

    chvyhs 1/2 ton status

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    I sent you a pm. /forums/images/graemlins/thumb.gif
     
  4. kennyw

    kennyw N9PHW Premium Member

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    I have a question for you though, do you have the correct output shaft too? Most people dont know they need to swap the output shaft on the TH400 when changing to a NP203 since it is the shortest version made (I think there are at least 3 different output shafts on TH400 4x4 tranny's).
     
  5. dhdescender

    dhdescender 1/2 ton status

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    [ QUOTE ]
    I have a question for you though, do you have the correct output shaft too? Most people dont know they need to swap the output shaft on the TH400 when changing to a NP203 since it is the shortest version made (I think there are at least 3 different output shafts on TH400 4x4 tranny's).

    [/ QUOTE ]

    If you need that output shaft...just pm me, I've got on in a tranny out back with a cracked bell, I'd just have to disassemble it.
     
  6. chvyhs

    chvyhs 1/2 ton status

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    How thick is the T400/203 adapter plate? My combo is a T400/241.
     
  7. dhdescender

    dhdescender 1/2 ton status

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    It's 1.1". With the adaptor on the transmission, the tailshafts is basically flush with the back of the adaptor.
     
  8. Trevor

    Trevor 1/2 ton status

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    If you have a 400/241, the shaft is the wrong one in your 400. Your best bet is to use your 241 adapter and re-drill your 203 to the round pattern. Then you just bolt it up. I can re-drill it for you if you need me to. Otherwise, just hold your 241 adapter up to the front of your 203 and transfer the holes.

    Trevor www.wfoconcepts.com
     
  9. dhdescender

    dhdescender 1/2 ton status

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    The advantage to the factory th400/203 adaptor is the 3"+ shorter driveline length.
     
  10. chvyhs

    chvyhs 1/2 ton status

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    I already drilled my 203 to match my 241 adapter. I just thought that putting the stock T400/203 adapter would be stronger that redrilling. Driveline length isn't really a concern since this is for the Doubler in my Suburban. My rear driveshaft is still about 5' long and my front is 39".

    So, what's in my best interest? I don't want to be breaking down on the trail and I never want to be holding every else back. /forums/images/graemlins/1zhelp.gif
     
  11. Trevor

    Trevor 1/2 ton status

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    When I re-drill the 203, I make a completely new transmission mount. The mount is a new crossmember that has mounting ears that come forward for the tranny mount, and back for the doubler mount. Since it is one solid crossmember, it helps hold the two together, and takes stress off of the studs.
     
  12. chvyhs

    chvyhs 1/2 ton status

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    Thanks for the info. That's what I was thinking about doing for the same reason.
     

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