I think the '62 and earlier chassis are much different than the 63 and later units, that said, I would suggest you pick up a '70-80 chassis that would already have disk brakes and power steering. Harvest the body mounts off of the '62 chassis, relocating them to the proper location on the new frame. The whole job would be quite simple and cost effective, thereby making the truck very user friendly.
With the body tag on the cab and the '62 sheet metal the truck would still be registered as a '62.
We did a chassis swap on my brothers '64, the truck turned out very nice. I did a chassis swap on my '64, opting for a 98 C10 Z71 unit. The truck is a dream to dive, handles like a new one, yet is still a '64. Wm. .
