2025 MACK, MD6, Medium Duty Trucks - Cab & Chassis Trucks, CUMMINS , Automatic, 2025 Mack MD642 with an Cummins 6.7 300HP an Allison 2500 RDS transmission. 10,000# Front Axle and 21,000# Rear Axle and an Mack AL210 Air Ride suspension, 300 Horse Power, Air Ride Suspension, Wheels, 270 Wheel Base, , Axle, 5.57 Ratio, , VIN 1M2MDBAA1SS014694