What GVM upgrades are available for the Silverado 1500?

With a fairly ordinary payload from factory (700-750kg depending on variant), the Silverado 1500 needs a bit of help to get Tour-ready.
The TSA GVM upgrades allow you to carry more weight and build a touring 4WD you can actually use. Here's why you need a GVM upgrade in the first place, and what we've got available to get you sorted.

[@rich7447]

Why would you upgrade the GVM on a 1500 when the Silverado comes in 2500 and 3500. The 3500HD DRW has a GVM of 14,000lbs/6,350kg.

[@OhWhatFun]

For when you don't want to be treated like a criminal for having a beer at lunch and doing 115 on the hwy.

[@rich7447]

@@OhWhatFun You have some weird restrictions over there. I have a class 3 (F450) in Maryland and there is nothing stopping me from driving 115kph/70mph after a 2 beer lunch.

[@OhWhatFun]

Land of the free, home of the brave!