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Changing from np208 to np 203/205

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by az84chevy, Jul 5, 2005.

  1. az84chevy

    az84chevy Registered Member

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    How hard is it to change an np 208 mated to a 700 r4 to either of these? I may have found a 205 for a good price and want to now how hard it would be to change over.
     
  2. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    what you'll need is a np205 with factory adapter and crossmember (unless you want to build your own) that came from the factory in a th350-to-np205 chevy truck. Then you buy a $50-ish spacer (search). Basically, the output shaft on the 700 is just too long... so the spacer takes up some of that un-needed length. You do need to trim about 1/8" off the output shaft of the 700... and will probably need to drill some new holes in the frame for the x-member and modify the shifter so it'll come through the floor in the right spot... but other than that its a bolt-in-and-go swap.

    j
     
  3. sweetk30

    sweetk30 professional hooker Premium Member

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    also the spacer helps clear the tranny pan with the frt drive shaft.
     

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