I have a 07 NBS ext cab 4x4 LT with 85k on it. I follow the oil change light on my truck (average is 10k miles on Syn) I grease the Lower Ball Joints, I then go to the tire shop where I bought the tires and have them rotate to keep the warranty. I went to get a alignment in the spring they said it was fine. The last 2 times when the rotate was due Ive been getting subtle shaking in the front at 45-50 mph, They rotate, then it goes away. The last time they said their is slight cupping/feathering usually from bad tie rod ends and with rotating to the rear it will go away untill the fronts begin the wear. I remember when I had my Bilsteins put on they noted a "normal" looseness in the front end but ball joints would need to be done at some point. So is this a common issue w the tires? Ill jack it up when I can and try to check the joints (lower should be good w my constant greaseing) Should I do the inner and outer tie rod, then alignment. And do ball joints when needed?