passenger rear wheel locked

Yes, pull the axle out (axle and hub are one assembly).
You are probably right about the bearing. Driver's side is stiff because of the positraction.
Keep us posted.
Thanks, I imagine I need to replace both sides. Are the bearings hard to extract or reinstall? Actually by "hub" I meant the rear (differential). BTW, should there be a tag on one of the housing bolt showing the ratio?