300 HP 7.8L Duramax Diesel engine with only 124,552 ECM miles, an Allison MD-3560-P 6-speed automatic transmission, 16,000 lbs. front axle and 40,000 lbs. rear axles on Hendrickson suspension and polished aluminum rims with A/C, This truck is fully loaded, and is southern clean with zero rust on the 21ft. of useable frame behind the cab.