hello,
just replaced the front wheel hub bearings on my 2005 blazer along with upper and lower ball joints. i used moog wheel hubs on both sides. i still have the wheel bearing humming noise. goes away when i turn left and gets louder when i turn right. also i hear i clanking noise from the right rear tire when i jack the truck up and move the tire left and right. rear has disk breaks with hub. could the rear hub bearing be going bad or is the slight movement rear axle play.

 

yes on the rear bearing. fornt noise may be the axle/axles, have you crank the t bars? First thought for me would be passengers axle

 

I've got kinda the same problem, except mine goes away turning right, so I assumed the front right bearing was bad. (weight transfers to the left when turning right, noise goes away.) Replaced it, no change.

Front end was completely rebuilt, plus new CV axles. No t-bar crank, after the front end rebuild, I had it aligned and had them check the ride height.