Quote Originally Posted by BlackGT97 View Post
no. the 97 is actually vacuum powered. If you look you will see a vacuum line running to the trans. the 98 is electronic. I don't believe you need the sub-frame...unless that is how your pulling the motor and trans like that.
Nope, but close.

97-02 all have the same 4T65e HD for the GTP

97 "GT" was the only year that came with the 4t60e which was vacuum operated.

If the swap is GTP to GTP, everything is the same really, except a few small things. I'd run the 98 PCM if the 98 is a GTP.