Newkirk, Okla., native Clint Mantz uses his 2012 Peterbilt 389 to haul raw feed, propane and butane for Acord Trucking. Mantz has added 6-inch drop panels, Rockwood flooring and extra lights to the truck, which began its life as a factory glider kit with a 2006 625-hp Caterpillar and 18-speed transmission installed by Kansas City Peterbilt. “My dad did it before me,” Mantz says of his work. “I’ve taken over the tradition.”
