Look on the driver side door for a tag. On that tag should be a GVWR weight #. That is how much weight the truck is rated to have sit on the leaf springs. Generally depending on the year its between 6500-8000 pounds.
If for some reason you need more weight than the recommended you can buy helper springs that attach to the leaf springs to prevent excessive squatting or you can put a 4x4 between the leaf springs and the frame to not squat past that point. Use judgement on this one, as excessive loads dwindle safety and performance and can cause damage to the truck.
2 million pounds
44 oz or 3 freon cans
1500 pounds or 3/4 ton
The 2006 Chevrolet Silverado white specification is listed as 4106 pounds. The weight does not include fluids in the vehicle.
The 2008 Chevrolet Silverado-3500HD's engine produces 373 ft-lbs. @ 4400 rpm.
The 2013 Chevrolet Silverado-3500HD's engine produces 380 ft-lbs. @ 4200 rpm.
The 2005 Chevrolet Silverado-2500HD's engine produces 360 ft-lbs. @ 4000 rpm.
The 2014 Chevrolet Silverado-2500HD's engine produces 380 ft-lbs. @ 4200 rpm.
The 2007 Chevrolet Silverado-3500HD's engine produces 373 ft-lbs. @ 4400 rpm.
The 2013 Chevrolet Silverado-2500HD's engine produces 380 ft-lbs. @ 4200 rpm.
The 2012 Chevrolet Silverado-3500HD's engine produces 380 ft-lbs. @ 4200 rpm.
The 2009 Chevrolet Silverado-2500HD's engine produces 380 ft-lbs. @ 4200 rpm.