frame repair + heat

[72CSTC5]

I can only speak of the GM frames. You can apply heat but they want you to keep it to a minimum. They want you to lightly hammer the metal to "vibrate" back the molecular structure of the steel back in to place. Cold pull where ever you can but we use heat quite often in our Chevy Dealer Bodyshop.

[71 lowrider]

I have worked in a frame shop for 36 years and I have been heating buckled rails and crossmembers since I started in the business. The process is the same as most procedures,use common sense and moderation,you will be alright.