Livestock hauler Troy Bolin grew up fascinated with this 359, knowing its prior owner. When it came for sale in 1991, he bought it and has held onto the Cat V8-powered rarity since.

The only things he's left unchanged are the engine block of the 400-hp Cat 3406B, the cab and the steer axle. Williams hauls hay and "whatever I can hook to that's worthwhile," he said.

Owner-operator John Treadway has had the truck custom painted, inside and out, in Harley's Frosted Teal, along with a white ...