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700R4 2wd to a NP203? Will it work

Discussion in 'The Garage' started by Mudbug1979, Sep 20, 2004.

  1. Mudbug1979

    Mudbug1979 1/2 ton status

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    My tranny (th350) is pretty much fried. I have a 700R4 out of a 89 2wd Sub and I have heard that with a few Mods I could bolt this up to my 203 x-case. Has anyone heard or done this? If it does require mods about how much do they run or would it be cheaper to rebuild my Th350 which I have had a quote of in the neighborhood of 400-500.00 range. Thanks for any info. /forums/images/graemlins/ears.gif
     
  2. Mudbug1979

    Mudbug1979 1/2 ton status

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    Anyone? No one? Some One?
     
  3. 1979jimmy350

    1979jimmy350 1/2 ton status

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  4. Mudbug1979

    Mudbug1979 1/2 ton status

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    Some one told me that you could just cut off some of the rear output shaft and it would mate up. That seems like it would be feesible but I don't want to tear anything up on a good tranny. I've never torn a tranny down so I have no idea what I'm getting into.
     
  5. 1979jimmy350

    1979jimmy350 1/2 ton status

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    the splins do not go far enough back even on the 4x4 shafts let alone the 2wd shaft. I have done this my self the only other way would be to use a huge spacer which would cause more problems because the 203 is a heavy case. I am selling a 700-r4 that has all ready been converted it is in the for sale fourm.
     
  6. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    the 2wd is WAY to long for this. the 700r4 4wd shaft is too long also. you will neeed the special shaft.

    now on a th350, the 2wd long tailshaft, you can cut 1.75" off the shaft and use a spacer to REPLACE a 700r4.
     

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