I just did mine last weekend. This is what worked for my 03 Yukon. I am pretty sure the setup is the same on yours but not entirely sure.
1. unbolt axle bolt in the middle of the rotor - 36mm
2. pulled wheel and saturated EVERY bolt with pb blaster.
3. unbolt caliper bolts, slide off the calipers. hang with wire off of the upper control arm
4. unbolt caliper brackets, remove the rotor and caliper brackets.
5. unbolt the 6 15mm bolts on the axle attached to the front differential and push it in. It drops right down and hangs
6. place the jack under the lower control arm and raise it so its parallel to the ground. from the back side you should be able to wiggle the axle assembly right out, worse case, you may have to unbolt the lower shock bolt and you get more room but I didnt have to.
7. lower control arm, unbolt the 3 bolts on the back side of the spindle(6pnt short socket)that holds the bearing onto the spindle. The top bolt needed a wrench to loosen. I would leave the bolts still threaded in a bit and with the socket still on it, I used a 7lb sledgehammer and hit the bolts from the back side.
8. The bottom 2 bolts will come out but the top bolt wont come out all the way because of the upper balljoint bolt but once the bearing is out, the bolt can stay there it makes it easier to bolt back up.
9. remove bearing, clean it out. put the new bearing back in and start with the top bolt. follow directions in reverse.
