2024 MACK, MD6, Medium Duty Trucks - Cab & Chassis Trucks, CUMMINS ISB, Automatic, New MACK MD7: Cummins ISB 6.7 300HP, Allison 3000 RDS 6 Spd, 12K/21K. 270" WB., 300 Horse Power, Multi Leaf Suspension, Wheels, 270 Wheel Base, , Axle, 5.57 Ratio, , VIN 1M2MDBAA2RS074588