Wheel bearing noise

Sounds to me like the drivers side but as stated noises can travel. The 9 1/4 rear axle bearings were designed so the "inner race" is actually the axle itself. Don't be surprised if you pull the axle and find the axle shaft is actually worn where the bearing rides. Seen as how you have to pull the differential cover to remove the c clips I'd check and replace both bearings and seals. Also if the axle is worn where the bearing rides they do make a repair bearing that positions the bearing rollers on a different part of the axle. This is all assuming it's coming from the rear end.