Cupping/Feathering & Recommend New Tires

[5speedsilverado]

And a quick way to check the hubs is to jack up the truck one side at a time just enough to get the front tire off the ground and stick a large pry bar under the tire,and pry against the ground and "lift up and down in rapid succession" this up and down movement should transfer any "free play" through the pry bar into your hand and it will signify worn hubs. If it is tight and you don't feel anything, write down the mileage of the truck when you checked the hubs and then check them again in the next 15k miles. I hope this helps you out

lower ball joint is what you just described, hub is grab the top of the tire with one hand and the bottom with the other and push/pull opposite of each other

[MrHorsepowerLSx]

That method works for both joints upper and lowers as well or for hubs that are sooo shot they wobble in all directions as soon as you touch them. You should also grab the wheel in a diagonal section and shaking the front down as well.... Either way both methods will work. And tell you if you have any worn suspension parts.
The pry bar method always yields me my best results Just sharing some helpful info, and thanks you for the correction