2002 Chevy Blazer CV issue, or is it

Hey Guys, I have a 2002 blazer (s-10 size), 4wd, 6 cly. I am experiencing steering wheel vibration, noise (humming and drumming) . The noise intensifies on any right steering and seems to lessen (but not go away) on left steering. I originally thought this was a CV issues, bur I inspected all the boots and none are torn and worn. Could it still be CV or should I be loooking in another place! Thanks for the help!!