- Medium Duty Trucks - Cab & Chassis Trucks
- 6 Spd
- Allison HS
The All-New MACK MD SERIES MEDIUM DUTY TRUCK! – This 2023 MY MACK MD642 Chassis has a Wheelbase to accommodate the body of your choice, built to order: Dry Van, Box Truck, Flatbed, etc. 2023 MACK, MD6, Medium Duty Trucks – Cab & Chassis Trucks, Cummins ISB6.7 260 hp, Allison Automatic Transmission – 6 Speed, 251” WB, Spring Suspension, Steel Wheels, Heated and Motorized Mirrors, Passenger Bench Seat, 22.5 Bridgestone Tires. Glacier White in Color.