When you say rear hubs are you saying the rear hub bearing (whole unit) or you replaced the structure of the rear hub. I assume rear hub bearings.
If so then I would go back and make sure the bearing has seated all the way in. Maybe remove it clean the surface making sure there is no rust or junk in where the hub seats. Also make sure to unbolt the abs sensor and be sure it is clean and bolts back in correctly. It sound like one of the two might be off set slightly or not seated fully.
I replaced the rear and one of my fronts with no issues. I used Timken hub bearings and it all went together easy. I had on bad rear one so decided to do both. If you need my good OEM rear I can send it to you but I think you will find the problem doing the Above ^^^^ steps.