A F350 diesel SRW is going to weigh between 7500 and 8500 pounds without the TC depending on cab and 2x4 or 4x4 configuration. unloaded the rear axle is going to be carrying about 3000 pounds add a TC and you will be at or above the tire capacity for most tires. I know because I own both an SRW and a dually F350 Crew cab diesel. With my TC the rear axle Cat Scaled at 7400 with my lance 1055 (4400 pounds wet) Suspension upgrades and 19.5 tires made it a good drive. My Dually makes it a great drive.
