Southern, double frame cab and chassis with Allison automatic transmission, Cummins ISX12 engine with 355 HP, 22K front axle, 46K full locking rears on Hendrickson Haulmaax suspension, 425/65R22.5 front tires and 11R24.5 rear tires, 224" wheelbase, 154" C-T, 20' of frame behind the cab, rear engine PTO, and 5.57 ratio. 200,187 miles.