my short cab does 10-11....eek.

 

my truck wieghs in at 5700 lbs, but thats also with a toolbox loaded with crap and two fatass's sitting in it

 

fella's here is a big shocker my truck shows it weighs 6600 pounds on the sticker inside of the door frame
and mine is the 2001 dodge quad cab 4x4 3 inch lift, 285/75/r16 yokohama geolanders and a pickup shell that weights another 150 pounds
i get about 9 mpg. thats unloaded and not counting passengers

 

you might be looking at the GVWR, I had the same truck as yours and it weighed roughly 5000 lbs. My current CTD weighs 7000 lbs (I scaled it)

 

lol... probably looked at the GVWR well all i know is it, is heavy.