Missing info that is required:
they are aproxametly 7,000 pounds depending on how they are equiped
The GVW should be inside the door, ours is 11,500
My crew cab long bed 4x4 dually with in bed tool box and 55 gal main tank weighs in right at 7500lbs
38 gallons
In stock trim, a SRW will be around 7200# with the fuel tank full if it's an 8' box, short box will be 200 or so pounds lighter. A dually will be 300 or so pounds more.
It depends on year, because there was a light duty F250 prior to the latest series of Super Duty (F250+) which started in 1999. There is a huge difference in frame/driveline between an F150 and the F250/F350. 1999 to 2004, the difference between the F250 & F350 was minimal, the GVWR of the 250 was 8800lbs & the 350 (not dually) was 9900lbs. 2005+ saw the GVWR's increase significantly. The dry weight of a crew cab diesel F250/F350 with 8' box and 4x4 is in the mid 7000lbs range. The F150 SCREW (not sure on this) would likely weight in the mid 6000's. Ton's of other differences but too much to get into here.
It depends... Is it 4 wheel drive? Is it a regular, extended, or crew cab?
It's not so much "needed" as it is a physical consequence. The empty weight is the weight of the aircraft itself - without fuel, crew, passengers, cargo or weapons.
8500 lb or greater 97 F350 Power Stroke Diesel Crew Cab = 9800 lb
single rear wheel 7500 dual rear wheel 7800
Owner's manual.
6800 pounds