There are four short videos of this on Youtube. Type “bad red 59 Chevy pickup” in the search bar to see them. They are all under 3 minutes each.
I cut off the frame of the 89, from the firewall forward. I do the same to the 59. Now the straight axle setup is gone.
The only stuff NOT NEW on this is the frame I created, parts of the original bed, and the cab. Literally everything else is. Starting rear forward:
It is the metal floor I torched from a similar donor truck. As the original was hit. Next, the cab.