World’s First Full-Manual Valvebody, Four-Speed 68RFE

Full-Manual Valvebody, Four-Speed 68RFE WP Developments has created the world’s first full-manual valvebody 68RFE. The quick-shifting four-speed does away with the use of the 68RFE’s […]

68RFE 6.7L Dodge Cummins Mega Cab

Derrick Barney’s 1,400HP, 68RFE Shifted ’11 Mega Cab When a rod left the block of his 6.7L Cummins a few short years ago, Derrick Barney […]