Charles Adams, out of Parthenon, Ark., owns this 2006 Peterbilt 379 EXHD. The rig sports a 625-hp Cat C15 with an Eaton 18-speed and Spicer 3:36 rears. He has had the cab lights and horns shaved down and replaced with nine small LEDs and train horns mounted underneath the truck. It also features Phoenix P3 panel lights, 7-inch DynaFlex straight stacks and a bowtie visor. Inside, Adams has installed Seats Inc. Legacy leather seats and a digital pyrometer. The 38-year-old owner-operator has had his own authority since he was 22. He started out hauling sawdust out of local sawmills, then switched to running flatbed. For the last two years, he has been strictly hauling cattle for Morris Cattle Co. out of Harrison, Ark.