LIFTMASTER SEARS Gear Kit 41A2817

Gear Kit for all chain or chain & cable combination Liftmaster, Chamberlain, and Sears openers made from 1984 to current. Contains Drive Gear, Worm Gear, Washers, Bearings, E-ring, C-ring, Collar, diagram and instructions. For reference, the diameter of the Drive Gear, shown bleach white, is 2-3/4 inches.