Led by crew chief Cole Pearn, Truex charged from the rear of the field to take over the lead on lap 240, going on to lead 132 laps.
Four hundred laps at Dover wasn’t a cakewalk.
“I promise it wasn’t easy. It was a lot of work. It was tough. But this race car was just incredible. Just thanks to everyone who makes this possible. I can’t believe it,” Truex said. “Without Talladega, we would have had two in a row. It is special. I am really, really proud to drive these Toyotas. They are awesome and I am a lucky guy.”