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goin from 700r4/208 to th350/np205 in 83k5

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by down4thakrown, Jun 13, 2004.

  1. down4thakrown

    down4thakrown 1/2 ton status Premium Member GMOTM Winner

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    What it says ^
    how far do i need to move it back
    got vaccum line, kick down cable, tcase adapter,
    would the same tranny lines work? what about the dipstick?do any linkages go from tcase to tranny? does the shift lever just bolt on to the plate? /forums/images/graemlins/ears.gif
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    You are going to run a hard line for vacuum and only use rubber on the two ends , right ? A long run of rubber will cause troubles later on.
    The linkage will work, but it would be best to get the stop plate and indicator off another column.
    As for mounting it , someone else may know measurements etc.( all I would do myself is install it , support it on a jack , and with crossmember on it, mark and drill the frame for new holes ) /forums/images/graemlins/k5.gif
     
  3. POWERMAD

    POWERMAD 1/2 ton status

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    I did that swap for a freind with an 87K5.
    The tranny cooler lines threaded right in, I used the dipstick that came with the 350, The tranny shift linkage bolted right up,.
    The t-case shifter hole had to be enlarged to fit the 205 shifter and a new shifter boot was used.
    The 208 x-member would not work but I used the one from the 350/205 and driled new holes.
    Front and rear shafts had to be made up.
    I think that was it.
     
  4. down4thakrown

    down4thakrown 1/2 ton status Premium Member GMOTM Winner

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    Would a th350/203 cross member work? /forums/images/graemlins/ears.gif
     
  5. POWERMAD

    POWERMAD 1/2 ton status

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    I'm not sure on that, but if you have one handy see if it willl work. if not I am certain that a salvage yard in your area will have one that you need.
     
  6. justwhatido

    justwhatido 1/2 ton status

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    I'm looking for a 700r4/208 to put in my 1973 k5. Yours in good shape? Wanna get rid of it? /forums/images/graemlins/pimp1.gif
     
  7. SF87K5

    SF87K5 1/2 ton status

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    I just did a TH700/NP241 to TH350/NP203 swap about a month ago. Here is what I can tell you.

    [ QUOTE ]
    Would a th350/203 cross member work?

    [/ QUOTE ]
    As far as I know yes.

    [ QUOTE ]
    Front and rear shafts had to be made up.

    [/ QUOTE ]
    If you have a lift you can still use your front shaft.

    I used the dip stick from the Th350.

    As for the kickdown cable you will have to use a different KC braket.

    What is your rear shaft off of? If it is off of a K10 it will work, If its from a K5 you will need to get is lenthend if your lifted.

    If you need any other help or pics just let me know.
     

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