yes the nova frame needs to be welded on. after you cut the frame of your truck. i would think of another option like mustang2 or somthing. if you dont have extensive welding and fabing skilss i would not try it. the subframe swap in my opion is not the way to go. the rear end swap is easy enough. make sure you get the right width axle perches and move you rear axle back about 1 1/2 to 1 3/4 inches to center your tires in the rear fenders. im not bagging on the subframe but i have tried it when i was younger and with little exerince. and i had to learn how to weld and fab before i was able to fix my major f up. have fun with your truck and do what makes you happy with it
