I've read this thread twice and still can't figure out what I'm supposed to do. Please correct my math if I'm wrong. My truck is a 2005 Silverado 1500 4x4 crew cab. the curb weight is listed at 5,299#, gross weight of 7,000 pounds. it's rated to tow 7,000 pounds. to cover the max weight of the truck and max trailer I would buy a weighted plate for 14,000 pounds. to never tow, but cover the max capacity of the truck I would buy a plate for 7,000 pounds. to cover the max capacity of the truck and tow a 4000 pound trailer I could buy a plate for 11,000 pounds.