The short bed and sub frame is the same short bed in Dodge/Rams 2500/3500srw and 3500 drw so rear axle capacity or being over the truck mfg gvwr has nothing to do with the damage in the pictures. If the rear axle is a Dana then its a '02 or older 2nd gen Dodge 2500. The 2nd gen 2500 4wd manual tranny had the Dana 80 rear axle.
Looks like most of the TC weight is all on the TC bottom outside rails causing the crushed bed/sub frame area to take all the weight. If the TC bottom is flat all the weight is transferred equally over the beds surface. Wonder what the TC bottom frame looks like.
A nice custom bed made for a TC is a good idea.
