Is it possible to restore a truck after a fire?

Aluminum can be melted in a camp fire...so some vehicles that means master cylinder, and most importantly the transmission.

If you haven't seen it yet, I'd expect large spans of metal (like hood, roof, door panels, quarters, etc) to have been distorted.

Your estimate of the temperature of the fire is kind of high for an open fire. I worked in heat treating and we had to have a controlled furnace to get the temperature that high.

All that aside, a temperature of 1600-1900 will cause a weakening of the structure of steel if not properly quenched. The steel will transform and weaken. I wouldn't trust the integrity of the frame, rotors, or any of the parts made out of steel.

I'm sorry for your loss and I know the Black Forest was a beautiful part of Colorado because I lived in Denver for 25 years and was in the Colorado Springs area many times.

Good luck, it may be time to write this truck off, and maybe start a new project truck.

At 2500 deg (if true), the molecular structure of the metal changes, maybe weakened it. They use heat treatment to strengthen metal, but it is done under controlled conditions with a specific temperature. As one poster stated, is it worth the cost of starting over? I imagine that you have a lot of melted plastic and other interior damage along with the wiring and other soft parts throughout the truck chassis.

you can restore anything you want.. queston is, is it worth it.. I watched on tv how to melt a car hood, and they tried fires, every way you wanted, and all it really messed up was the paint on top and bottom, then they used thermit. now that shxx went through the hood and the engine block. sure you didn't have that much.. but a lot of cars are left out in the elimantes and usually taken in and restored back to new. it is possible, just do you want to spend the money to do it.

That depends. Do you have photos of the damage? Is the paint and parts destroyed. If it is, that pickup of yours is going to get scrapped.