Thank you for the info, folks.
Here's what I found. In Classic Industries, they are part numbers WB67 and WB52 for front outer and inner wheel bearings, respectively, and cost $14.99 each. But then again, they show another front inner wheel bearing for $49.99. So I find that confusing. Maybe I'll check LMC Truck too.
Are 3/4 ton wheel bearings different from 1/2 ton wheel bearings?