Got this part for my 05 GMC Sierra 5.3L extended cab. My front bearing was making a whinny noise and I noticed it started to effect my braking because it seemed like my anti-locks were engaging so it was getting shaky when I went to stop. All common signs of a worn out hub/bearing. I started to price out the part first by going through the dealer (I don't like aftermarket parts if I can help it) and they wanted $527. I looked online and ebay and other online shops wanted $319 and up. Went on amazon and saw $252 with free shipping. Sold! Couldn't beat the price. Since it is a Delco part I know they are the best so I will have no problems. Not I have to debate if I want to put the part on myself or take it to the dealer (again, I won't go to corner mechanic shops). Went on youtube and it looks relatively simple but the old hub can be a B getting off. I don't have torches so we'll see. Best part about getting OEM parts is you can call the dealer and they will run off your VIN and tell you the exact part # you need. So I am certain this was the correct part. I'll come back and let you know if I have any problems with the part but I am certain it will all be fine.