I have a f50 that I have put on bilstein front shocks set at .75. The truck had an alighnment right afterwords. Tires have about 10k miles on them. The tires I have are Michelin 275/60/20 Ltx at2. I had a friend at work front told me the outside edge was cupping. He ran his hand around the edge. I can't tell anything by looking at it. I have noticed a slight humming noise that I attributed to the kind of tires. Any thoughts?

 

Try doing a rotate and balance. Should be good to go after that. The humming is probably coming from that. If you rub your hand on the tread opposite rolling direction you should be able to feel it. When my vehicles do this I make sure the balance is good and tires are rotated to opposite corners so they roll opposite direction. Cheapest thing to diagnose. As long as it is caufpght early you should be good to go.

 

Had them roadfoce balanced and rotated couple weeks ago.