Have a 2002 chevy silverado 2wd that is making a popping noise when I turn left or right and has vibration going down highway. Noticed that grease boot on driver side ball joint was busted and was wondering if that is rubbing and popping from there

It is possible that the ball joint is bad, to check you can jack the wheel up 1/2 off the pavement and use a tire iron to lift up and on the tire and watch the ball joint if it moves up and down thats your problem. from a mechanics point of view I would replace both the top and bottom at the same time as this saves labor since you have to tear it down anyway and the upper ball joint should be worn as well. If the ball joint does not move then put your hands on each side of the tire and move it back and forth, if you get movement you will need to get a second person to move the tire back and forth and watch to see where the play is. normally it will be in the drag link or the control rod, replace items as needed and try for free play again, you may find another bad part as well. normally there is more than on failed part. once you have done the parts replacement you can put a scratch in the tire with a nail on each front tire and then with a tape measure measure the front and back of the front tire you will want to get it toed in 1/8 of an inch then go to a tire shop for a alignment. should be around 58 inch's center so front would be 57 inch's and 15/16 this of an inch and the back would be 58 inch's and 1/16 of an inch. hope this helps. If it does please rate and thanks for using fix-ya.