I bought a 98 gtp , gonna swap the motor and transmission into my 97 gt , the 98 has a blown transmission, and the t60 in mine is slipping , so gonna buy a reman transmission from napa since I get a great deal working at a shop . Now is it a 65 or 65hd ? I'm thinking itshould be the hd ? Any thoughts or ideas?? Btw the motor has some goodies on it , headers ,smaller pulley on the sc , oversized injectors , and was rebuilt about 30k ago . The reason for putting the sc motor in my car is mine is in much better shape