I need another truck to replace my chevy k2500 1989 4wd. Looking for similar new. Dealer right down the street has a 3500 4wd, with 6.0 gas for $23,770 after rebates. Anyone use this truck? Pros, cons? I have a dump with a 6.0 gas, and the mileage is horrible, 10mpg or so.......will I do better with the pickup......should I get the 3/4 ton instead of one ton...price is similar????