Years ago my BIL, a big Mopar guy had the 1969 or 70 version of this truck as his work truck (framing carpenter) 4wd and had side boxes, a cross box and bed loaded full of tools. It was a hell of a rig. He is hard on all trucks, this one was no different. He drove it for 3-5 years until it was totally whipped at which point he dumped it and moved onto his next victim!
Oddly, that old rig could really run, literally fully loaded that truck followed me one night right on my back bumper at an even 100MPH! (I am not going to go into that story though)