Machine description: Cummins ISB 6.7 L Diesel Engine, Requires Diesel Exhaust Fluid, Automatic Transmission, 8000 lb Front Axle, 15000 lb Rears, 4.10:1 Axle Ratio, 23000 lb GVWR, 245/70R19.5, Spring Suspension, 178 in Whe... more info about the 2008 Freightliner MT55.