Automatic Taper Rebuild Kit (502A) Includes: (1) Bushing, Head; (2) Taper Wheels; (1) Bushing Head; (1) Spring Drive Dog; (1) Roller Axle Spring; (2) Bearing Nyliners; (1) Drum Washer; (2) Nyliner Bearings; (1) Tenite Bearing. Drywall Master Taper Rebuild Kit