I found out that the right rear wheel bearing was replaced. I also found out they pounded the H&ll out of the axle to get it out (rusted). Mechanic my father-in-law uses (also, <sorry different topic> that he didn't replace the seals with the bearing! I know the guy and it really doesn't surprise me).
I'm thinking that they might have damaged the wheel sensor. After hearing all about how they did the rear bearing I'm sure that this is the problem. I'm putting it up on the lift this weekend to get a good look at the undercarrage.
I really do appreciate all the help that has been provided!
Eric