Top of agitator didn't agitate. It was slipping.

Pried off the agitator cap. Removed the bolt. Removed the agitator. In the process of separating the agitator from the base, a plastic tab broke off which concerned me. BUT, in the directions with the part it explains that the 2 tabs are for factory assembly and to break both of them off. Broke off the second tab and reassembled. My 18 year old Kenmore is back in action.