as it is today, im putting a 78 gutless frame under a 1940 chevy coupe
the gutless frame is 5" shorter in wheel base, the dimentions between the frame width at most foward mount of the rear suspention , and the furthest back mount of the front suspention is real close.
im going to cut the old side rails out of the frame and replace with 2 x 4 box tubing along with streaching it to acheive the correct wheel base.
downfalls...
alot of time to fab the frame,
you gotta take the car apart.
you gotta modify the shat out of it.
im using a metric frame.
however i now have a modern chassis and replacing parts will be easy.
if you dont want to take the car apart, and you absoutely hate the shock absorbers/upper control arm mounts.... a crossmember from a 54 chevy will bolt right in. with minor steering mods, it will feel like a bran new car.
you can also strip the old iffy rear leaf springs and weld in some camaro springs. or you can get crazy and 4link, or 2 link it.
i will be finishing the frame in the next few days, ill post some pics for you.