how do I check the pump?

Hi all. Hoping someone can help diagnose. My daughter overloaded my washer and it squealed, smelled like burning rubber, was smoking and did not spin out. The water drained though. In taking it apart, we found a sock between the two tubs. Removed the sock, changed the drive belt, and the washer agitates, but during spin smokes from underneath and smells like rubber. What else might be a problem? :confused: :(