Clean, double frame cab and chassis with Allison 4500 RDS automatic transmission, 18K front axle, 46K full locking rears on AirLiner suspension, (2) 11K steerable lift axles, 315/80R22.5 front tires and 11R24.5 rear tires, 292" wheelbase, 198" C-T, 24'8" of frame behind the cab, and 4.10 ratio.