Depends , what do you have for a motor the diesel or a gas motor and what rear gears do you have ,if you had the 6.4 gas motor with 4:10 gears in a crew cab configuration with Dual rear wheels your GVWR would be 14K, payload would be a hair under 7K and your slide in camper rating would be just under 6K like 5900 and a bit more, our mammoth weighted in at 5500 loaded on the truck with tie down's and fast guns, dry with full propane tanks, we have the generator and double couch with 2 TV's and the fireplace. I am over my gvwr with full fuel and wife in the truck , have been looking to replace the 2007 which had some really low ratings for a drw 1 ton
mike