help me select the correct rear hub bearing or hub kit.

I need advice.
I AM TOTALLY CONFUSED, I have been to my GMC parts and my local supplier, a couple of phone calls were also made trying to order the rear axle hub bearing for my 2002 Duramax, 2500hd, 4x4, but no luck.
The prices have ranged from $35.00 to $179.00, It appears that every one is looking at a different parts book or picture or no picture at all, I also think one price was for a dully hub.
It would seem there are bearing, there are bearing kits, and complete hub kits,
Does the hub kit come with the wheel studs installed?
How many bearing are in the driver’s side rear axle hub?
Does anyone have parts numbers?

thanks for any help

drive safe

I found some on the Timken website

http://www.timken.com/industries/aut...rtCatalog.aspx

Inner) NP706218 2 (11.5" R.G.)
(Inner) NP910345 2 (11.5" R.G.)
(Outer) NP145100 2 (11.5" R.G.)
(Outer) NP913325 2

This might get you somewhere. Timken & Federal Mogul are the only bearings I can think of atm. Good luck