379, Heavy Duty Trucks - Cab & Chassis Trucks, Caterpillar C13, 10 Spd, Long Wheel base truck Wheel base 235" cab to end of frame 252" cab to trunion 145" cab to center of rear axle 174", 410 Horse Power, Air Ride Suspension, Aluminum Wheels, 235 Wheel Base, 11R 22.5, Tandem Axle, Ratio,