[Big Bear]

Noticed the flex my 65, so while the car was apart for a refresh I boxed the frame. Before it went back togther found a convertable frame so switched every thing over to that frame and is under the car now. Not done yet but expect an improvement. 1966 you could order a heavy duty frame (convert) option on a hardtop.

[Rich-Tripower]

Originally Posted by Big Bear

Noticed the flex my 65, so while the car was apart for a refresh I boxed the frame. Before it went back togther found a convertable frame so switched every thing over to that frame and is under the car now. Not done yet but expect an improvement. 1966 you could order a heavy duty frame (convert) option on a hardtop.

For what it is worth, when I built my 65 Chevelle 2-door wagon, I used an El Camino frame (boxed like a convertible frame) and used poly body bushings. I could put a jack under the frame just behind the front wheel and it would lift both wheels off the ground on that side at the same time. With a hardtop roof, boxed frame and poly bushings it made the car pretty solid. Don't need some fancy way over priced frame kit to make these cars more stiff.