His First GMC 2500 Gave This Truck Collector a Lifelong Quest

For decades now, John Mullen has had a 1967-72 GM “Action Line” pickup truck in his life. Or several. “As a kid, I found a GMC 2500, a Camper Special, with four-wheel drive. When I turned 16, I took out a loan for $2000 and bought it,” Mullen recounted. “That was my first work truck. […]