GENIE Garage Door Openers 36773S Carriage Assembly 8 Foot Doors GENIE Garage Door Openers Carriage Assembly 8 Foot Doors For use on IntelliG 1200, 4024, ChainMax 1200, 4022, Destiny 1200, 8030, SilentMax 1200, 4042 Chain or Belt Channel Assembly For use on IntelliG 1000, 3024, 3024H, ChainMax 1000, 3022, Odyssey 1000 and 7030 Chain and Belt Channel Assembly