Originally Posted by BobzRam
I know that my 10 is on recall for tie rods, but I havent had any issues yet. Cupping is usually from out of balance tires, bent suspension parts or really worn shocks. Do you go 4 wheeling with your truck? Have you hit anything, big pothole? Do you have a lift kit installed? Hows your tire pressure? I cant see you needing shocks (struts) already. You said its only on outsides, most times that would be a camber adjustment, but only if wear was even across the outside not cupped. Could you post a pic?
Cupping is also caused by suspension angles, hence the alignment. I had minor cupping on mine, since alignment done, no cupping.