If you dont find them soon i can give you the part numbers out of the factory parts manual, but you can download the parts book off this site and look them up yourself, they are availible from almost any bearing house if you take in your old ones, or buy new from a HD dealer, or one of the vendors on this site (Look up on the tool bar sparky)
theres several ebay sellers as well as amazon sellers selling new bearings and bearing kits, press in the news ones carefully with a press and drift, if you dont know how, have someone who does, use a inside bearing puller to remove, heat up with a heat gun if neccesary and clean the area first, check the manual (FACTORY) on the correct procedure and check for retainers and snap rings
YES on Rsquare (Remove & replace) the front bearings as well. Look for heat damage, galling, peened over races and lips (from the gorilla who might been in there before you), use a light coating of antiseize on the axles on assy, (moly coat is best) and carefully clean the treads on retainers and fasterners and use Blue loctite on them or safety wire Loctite wont stick to greasy or oily threads so use some aerosol brake cleaner on the threads and use clean compressed air to dry them, clean your brake rotors while you are at it, and avoid lubing brake surfaces.
if you can preload the wheel bearings, then back off and then torque the axles, read the factory manual,