I was driving my girl to go take her MCAT this morning and I kept hearing this squeek-squeek-sqeek coming from my front right wheel. I didn't think much of it really. But on the way home, the front of my car starts vibriting like it did when I got a flat the other day. Not only that but there was a grinding noise too.
I pulled over, tire pressure was fine and I couldn't see any thing wrong. I drove home and the grinding noise just got worse and worse.
I was thinking wheel bearing.
I called a friend that'* going to auto tech school and asked him what he thought it might be. Luckily he was at work with this guy that put more than a few years in at a GM dealership. He told me to jack the car up, put my hands in the 12 and 6 o'clock positions and move it back and forth to see if there was any play = wheel bearing. Sure enough there was. He also told me that I would have to replace the whole hub assembly and that it would cost at least $100.
So I was off to the local u-pull-it yard. After toying with this one bonneville and stripping a socket wrench, I found a bonnie that had about half the work done for me. I got it off pretty quick and picked up some small interior pieces that have been broken.
It only cost me $11!!!!
I got back and tried to install it but I didn't have a socket for the HUGE axle nut. I searched on here and found out it'* a 34mm and i went and got it. After that it was smooth sailing.
Everythings back together and smoooooth.
The info on here is great. :P

Umm...
Used wheel bearing=BAD IDEA.
The hub assembly is one of those parts where it is absolutely worth the money for the new part. After all, if it CATOes, you are utterly and horribly screwed.
Especially on our cars, because the replacement offered by GM is now a one-piece hub/wheel bearing/speed sensor assembly, and the original is a two-piece assembly that can be easily pulled apart while removing it, damaging both halves.
You're probably fine, and I doubt anything bad will ever come of using the boneyard piece, as long as it didn't show evidence of having been pulled apart, but keep an eye on it.

I've got to agree with Gonneville on this, I've done one on my car and used an AC Delco and wouldn't consider anything else.

Still, it was pretty industrious on your part to get through that

Cheers,

Well it looks like you get what you paid for.
I probably got 100 miles out of the used one.
I get paid tomorrow so I'll probably get a new one.

Dude... I've had one of those lock. Not cool, Although I did get it to roll the rest of the way home.

Funny Story: Guy comes to shop wanting new front tires. Early 90'* Caddy, T body I think. Fine whatever, I grab the keys and go to pull it in. I get out there and he says to watch out, I'll have to be stiff with the wheel because the hub is bad. Whatever. I tell him "four wheels and I can drive it". I get it in, It took about 50% throttle on his V8 to get the car to move. I throw it up in the air and pull the nuts, But I can't for the life of me get the passenger side rim off. He'* on the other side of the fence telling me that it got so hot it welded to the hub and his buddy couldn't get it off either. So, I lean my happy butt under there to take a look. The slide bolts are bent and the caliper is hard against the rim. So I get a wrench and let the pressure off, Then slide the piston in and pull that wheel off. Here'* what I think happened: The slides got stiff, He kept driving it, The outer pad got thrown, He kept driving it, The piston will come a good bit out and it just kept pushing, The it must have bent the slides, As it started eating the rotor. But he still kept driving it. It ate the rotor down to the fins. I ended up fixing it, And he paid almost $200 for parts, when all he needed at first was a little work and some grease.