I purchased a 30' 5th wheel ( Gulfstream Seahawk ) . I believe the weight is 8700 lbs. i needed a truck I could pull it with and so I purchased this 3/4 ton Chevy with a 6.0 liter gas engine . I know most everyone says to go diesel but I just can't afford the initial expense much less the costly repairs. Correct me if I'm wrong but I'm thinking the 6.0 3/4 ton should be sufficient to tow more than 10,000 pounds. I will at most be using it once a year to go from Morristown AZ to Wilmington OH And back. In actuality I will use it to go about 500 miles one way and back again once a year. I'm thinking I will buy a new Reese 16K 5th wheel hitch with sliding Rails ( my box is 6.5 feet ) .  I'm getting right at 11.5 mpg in town with this pickup empty. I am guessing I will be lucky to get 8 mpg on the highway towing. From all of your experiences, does it sound like this setup should work like I am envisioning it ? Any feedback is appreciated as this is my first towing experience with a 5th wheel.