I have a 2005 GMC C5500 flatbed for sale , it has a 8.1 liter vortec engine the truck has 166,000 miles on it the engine was rebuilt about 30,000 miles ago , with a Allison 5 speed automatic transmission , 596 rear gears and a 14ft x 8ft flatbed with pockets for side rails and D-ring tie downs .tires have 90-95% tread left on them it also has power windows , power locks , cruise, factory alarm and cruise control . The truck runs and drives great , all services are up to date . $10,000 obo .