Thanks for the insight. Went to dealer to pick up axle nut. Not many dealers have it in stock. Got my driver's side wheel bearing done today. Couldnt break axle nut loose with a breaker bar and 3 ft extension from my jack handle. Ended up going to harbor freight to buy the 32mm impact socket and zipped it right off. As for the rotor, took quite a few bangs with my 4LB hammer I bought from harbor freight and it came right off. As for the 4 14mm wheel hub bolts, they're pain in the ass. Wasnt hard to break open with breaker bar but because of rust it took forever to back out the bolts, luckily i found a way to sneak my impact gun in there and cut down the labor and time tremendously. Then separating the wheelbearing/hub from the steering knuckle wasnt too bad. The 4LB hammer really came in handy but I wanted to try out the $9.99 air hammer I picked up from harbor freight, that made the job even easier.
Long story short, PB Blaster, air tools and big hammer really saved the day. Otherwise, god knows how long it would've taken me.
The humming noise was reduced but i still hear it, I guess I have to tackle the passenger side next week when the bearing comes in the mail.