The dry weight of our fifth wheel was about 300 lbs more that the "brochure" weight. The unit dry weight is listed on one of the cabinet doors.
The "brochure" dry weight - no water in any tank (including HW heater), no propane, no options and all of the compartments empty.
All of the trailer specs:
http://www.rvguide.com/specs/starcraft/travel-trailer/2008/aruba-reg/268rks.html
Your tow rating is 7400 lbs. GVWR of 7000 lbs
Add a little water (8 lbs/gallon) , propane tanks (4.2 lbs/gallon), 2 batteries (100 lbs) and camping stuff and you will exceed the tow rating of your truck.
