An official square-body truck is a Chevrolet or GMC C/K built between ... The lowest recorded sale is a mere $2,200. Admittedly, the top sale is $228,250, but there is always an outlier.

That toughness was arguably never more embodied than in the brand's so-called "square-body" builds that went into production in 1973. If you're wondering how Chevy trucks from that period earned ...