Laundry treating appliance with integrated dynamic balancer

A laundry treating appliance with an integrated dynamic balancer comprising:

• a rotatable drum for receiving a laundry load wherein the rotatable drum includes a cylindrical body with a cylindrical wall about a longitudinal axis, and a metal cover at one end thereof, the metal cover having an annular groove formed by a first wall adjacent to the cylindrical wall, a second wall spaced from the first wall, a third wall extending between the first and second walls, and a fourth wall having at least a portion thereof extending from the second wall generally normal to the longitudinal axis;
• a metal adjoining piece having a first adjoining wall coupled with the third wall and a second adjoining wall coupled with the fourth wall;
• wherein a hollow annular raceway is defined by the second wall, the third wall, the first adjoining wall, and the second adjoining wall;
• a sound dampener comprising at least one of a polymeric layer in the metal cover, a polymeric layer in the metal adjoining piece or an insulating layer in a support piece adjacent at least one of the walls;
• and
• a mass disposed in the hollow annular raceway and movable therein.