The Chevy Van is a good truck and the powertrain needs no introduction anywhere in the world. GM hasn't shown the dedication to Class C market that Ford has, but I wouldn't worry about parts and service. 6.0 GM V8 seems to get a little better mileage than 6.8 Ford V10. There have been a couple OP's here who think their 4500's are too bouncy. May be because they're under a small coach, because they are new, or because expectations are too high. We have a group who believe Fords ride like boxcars and Chevys ride like limousines. Neither extreme is true. Both are high priced rental trucks.