Tandem axle day cab Purchased by the De Youngs from a Nebraska collector in 1995 Comprehensive restoration Supercharged 743/320 HP Cummins inline 6-cylinder diesel engine 24-speed twin-stick manual transmission with 6-speed main and 4-speed auxiliary Kenworth torsion bar suspension Dual exhaust stacks Roof cab lights Trailer brake Stewart Warner gauges For more information, please visit mecum.com.