Stop in for a cup of coffee

Tires were wearing, inner or outer, don't remember which as new now. Tires were used 5 years ago. Now 2nd set if wheel bearings in 2 years. I shimmed king pins now too but not sure what is causing it. On 2wd truck hubs. Do you pack just the bearings or fill the whole hub too?
I fill it. Are these adjustable bearings? Or sealed?