Packing wheel bearing question

[gman]

I hope this isn't too basic of a question but was wondering if someone could step me through the process of packing the wheel bearings on my '72 K10 truck. I've replaced the manual hubs on it but after that I wasn't sure what to remove. Are there inner and outer bearings that need attention? Is there anything else that ought to be done at the same time while I'm in the frontend? Seals or anything like that? Sorry for what may be a rather simple question to most. Any help is appreciated.