Seems there's a sale several Diamond Reo trucks, click below. Can't say I ever drove one of these or a Brockway, though a friend in the excavating business had a Brockway tractor, lowbed trailer for equipment, just sold out, retired, ran it all these years, well kept too. Drove plenty of Mack, Autocar, International, Ford, White/Freightliner and GMC. Drove a 1961 B-61 tandem dump w/ 54 rears, Thermodyne engine with Quadraplex transmission, manual steering. I still like the way those look, sharp. Drove both a '68 and '72 Autocar tractor for the same outfit, both of those were sharp, hauled D8's, 627 scraper size equipment. These trucks were nothing but steel for the most part, hard to imagine compared modern trucks.
Diamond Reo
Diamond Reo