Motor: Mack E7 4 valve mech 350 hp - inline injection pump Air to Air: Yes Transmission: Fuller RTXF14609B 9 speed PTO: air operated bottom mount with air operated married hydraulic pump Wetline: to operate dump trailer / lowboy Rear: Mack 38,000 lbs Ratio: 4.42 Suspension: Camelback Rubber Bushing 38,000 lbs Tires: 11R22.5 Rims: 10 Bolt F/A 20" open T/A Length: 22‘6" Width: 8‘ Height: 9‘5" Odometer Reading: 712,432 Hour Meter Reading: 37,926 Wheelbase: 188" Cab to Axle: 110" Cab to End: 157" Weight: 16,780 lbs GVW: 50,000 lbs Added Details: runs well, single frame, air slide 5th wheel - can pull frameless