Sleeper Size: 67 in Transmission: Automatic Engine Brake: Yes Suspension: Air Ride Ratio: 2.64 Tires: 275/80R22.5 Wheels: Aluminum Wheelbase: 208 in Number of Rear Axles: Tandem Front Axle Weight: 12,350 lb Rear Axle Weight: 38,000 lb Drive Side: Left Hand Drive