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NP 203 crossmember modification 4 205, need some help

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by avgas, Apr 19, 2004.

  1. avgas

    avgas 1/2 ton status

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    OK I currently have a 203(T350 Trans) in my rig. I have a 205 with the TH350 adaptor(I think it's out of a 1st gen), problem is, where the adaptor bolts to the crossmember is slightly different the bolt pattern is approx 2in skinnier. Can I modify my crossmember to accept the 205 adaptor? Would just drilling new holes be acceptable? should I reinforce the crossmember after I dill new holes with steel plate. Underneath the rubber tcase mounts are there oval holes to accept either tcase? (some of the holes in the frame are like this I noticed).

    I have a 73 k5.

    any help/insight is appreciated.

    -jake
     
  2. dhdescender

    dhdescender 1/2 ton status

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    Yup, you hit the nail on the head, the Crossmembers are Exactly the same, they're slotted for either adaptor.
     
  3. avgas

    avgas 1/2 ton status

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    thanks man, I really needed to know what I was getting into b4 I tore it apart /forums/images/graemlins/waytogo.gif
     

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