2019 M2 106 straight trucks Cab & Chassis , 26000 GVW with air brakes, ISB 325hp, Allison 3000RDS Tranmission. Derated by the frame rail. 12000lb front axle and 19000lb rear. Spring Suspension. 192" Wheelbase. 70 GAL Fuel Cap. 11R22.5 Steel Wheels