Paccar MX-13 (380HP), Engine Brake, Eaton 10-Speed Manual Transmission, 38,000# Dual Rear Drive Axles, Flex Air Suspension w/ Deflate Switch, 12,000# Steer Axle w/ Power Steering, Inter Axle Differential, Cam Style Drum Brakes, 80 Gal. Frame Mounted Aluminum Fuel Tank @ L/H Side, Frame Mounted DEF Tank R/H Side, Air Ride Driver's Seat, Cruise Control, Manual Driver's Window w/ Power Passenger Window, Air Slide 5th Wheel...