6400LB Pro Stock 4x4 Trucks
These trucks must weigh 6,400 pounds. They feature a 510 Cubic Inch engine and DOT regulation tires. These trucks are popular with fans because of the close competition and the high RPM range they operate the engines. Most are in the 9000RPM range!
These trucks are very much like the National FWD trucks other than the smaller engines and having to run the DOT tires. Several of these trucks feature Dragon Engineering products including engines, wiring, ladder bars frame reinforcement, and custom hitches.
Dwayne Griffith and his Jerry Smith Machine "JSM" powered Ford, "Runnin Rampant," charged into the Pro Stock 4x4 season with authority, securing back-to-back wins in Orange, VA, to kick things off. His relentless drive and finely tuned machine kept him in the championship hunt all season, proving that horsepower and consistency are key to success. Whether battling tough track conditions or fierce competition, Dwayne and his truck delivered strong performances, making every hook count on the road to the title.
With the support of his family and crew, "Runnin Rampant" stayed at the top of its game, ultimately clinching the Pro Stock 4x4 championship. Off the track, Dwayne applies the same dedication and hard work to his business, Griffith’s Excavating, as he does to truck pulling. Congratulations to Dwayne and his family on an incredible season—this was a championship well-earned!