[HeavyChevy82]

You can check your front end very easily with a jack and a pry bar. Put the jack under the lower control arm to lift the tire off the ground it’s important to put it under the control arm and not the frame to unload the ball joints. Once the wheel is off the ground stick the pry bar under the tire and lift up and down. If you have some small movement that’s ok Blazers have a small amount of tolerance for movement. If you have a lot of movement more than a fraction of an inch it's time for new ball joints. If you grab the wheel at the 3 and 9 o’clock position and move it side to side you can check your tie rods and idler arm/pitman arm and center drag link. If you grab the wheel at the 1 o’clock and 7 o’clock position and move the tire in and out you can check for movement in you wheel bearings. You don't really want to hold the very bottom of the tire incase the jack falls you will get your hand crushed (I've seen this happen).

Good luck
HeavyChevy