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TH350 information needed, help plz .

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Project, Aug 30, 2003.

  1. Project

    Project Registered Member

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    Hey guys,
    well i found a rebuilt turbo 350 tranny for 325 bucks and i'm gonna pick it up sunday morning, the guy told me he has the long shaft and short shaft . i'm gonna use the np 208 with it so wich one is the righ one? how about the splines?any difference?
    also i need to know what kind of shifter i should go with(i just need a simple floor shifter) and where to get it from.
    i have a sm465 and np 208 now and willing to sell'em after i done this swap so if anybody interested let me i 'll let'em go cheap.
     
  2. G.M.H

    G.M.H Registered Member

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    I am not 100% positive but I think the long shaft was only used in 2wd vehicles.I have a B&M starshifter in mine and I really like it.It has a very positive feel to no sloppiness to it at all,unlike my factory column shifter where I had to wait for the "clunk" to know if it was in gear.It has a ratchet feature which I don't really need,but is fun in the city.The install was very easy due to the cable system.I highly recommend it.
     
  3. R72K5

    R72K5 Banned

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    there are three lengths

    2wd used 6"and 9" with a tailshaft housing


    the 4wd used a shorty stubby with no tailshaft housing

    if it has a tailsdhaft housing then its not for 4x4and hasto be 100% guttedand output shaft replaced with a shorty stubby 4x4output shaft and 4x4donmot use a output tailshaft housing
     
  4. Project

    Project Registered Member

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    i was reading all posts about b&m shifters on this board, it seems to be the best choice.this is a picture of the tranny, is it short shaft or long????? [​IMG]
     
  5. boz42

    boz42 1/2 ton status GMOTM Winner

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    it looks like a 4wd version to me. notice u can not see the tail shaft sticking out. if it was a 2wd there would be a lot hanging out there. the tranny does not have a tail housing either (not that that is a good way to tell what it is for).
     
  6. Project

    Project Registered Member

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    well the uy told me i need a adapter to mount the 208 case on this tranny, but the 203 will bolt right up.i know the 203 is full time case, but is it a good transfer case????
     
  7. the professor

    the professor 1/2 ton status

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    The 203 has the "adapter" as the front of the transfer case.. its the tranfer/transmission mount...
    --
    That trans looks like it has a 4x4 shaft, they only stick out about 3/4 inch, but it is not a 4x4 case.. 4x4 cases are thicker and have a large "K" cast on the top of the case....
    --
    Make absolutely sure you use the brace for the transfer case.. this case WILL crack without it..
    /forums/images/graemlins/cool.gif /forums/images/graemlins/truck.gif
     

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