HQRP Drive and Worm Gear Kit for LiftMaster 1255LMC 1255LMC-R 1255R 1260-266 1260LMC 1265-267 Garage Door Opener Access System + HQRP Coaster HQRP&reg; Replacement Drive Gear and Worm Gear Kit plus HQRP&reg; Coaster; It Is Highly Recommended That You Replace Both The Drive Gear And Worm Gear At The Same Time; 100 Days Warranty!