Chamberlain LiftMaster Sears Craftsman Screw Drive Rack 81C168
Chamberlain LiftMaster Sears Craftsman Screw Drive Rack 81C168 Liftmaster 81C168 Garage Door Screw Drive Carriage Rack 04 – 81C168 Liftmaster – Chamberlain/Sears/Craftsman garage door opener carriage rack for screw drive operators. Works in conjunction with carriage trolley part number 41C4677. We recommend using Lubriplate brand lubricant after installing this part.