Originally Posted by Asur
+1 on this, the truck is made for X payload, adding aftermarket products may help in carrying more payload but the truck is not designed for it and issues may arise from overloading the truck, the extra load may also induce safety issues and kill your trucks warranty. Best bet invest in a trailer that can carry the extra loads and keep your current truck or buy a bigger truck that has the payload capacity of your needs.
Couldn't agree more; it's a simple decision. If you only need the extra capacity occasionaly, get a trailer. If you need it frequently get a HD truck.