ok, so my steering has been getting progressively sloppier, there is about 2 inches of play in the steering wheel. how do i tell if it's the tie rod ends? i jacked the truck up and the tie rod has about 3/4" of play where it meets that little rubber boot thing(slides in and out). does this indicate a need for tie rod end replacement? if so which one, inner or outer? it looks like something i can do myself, then just take it right away to get aligned. i am planning a trip to louisville, KY at the end of the month, i will be about 1,000 miles from home, and want to make sure my GMC won't let me down. thanks guys.