Craftsman Steel Rail Extension Kit - 5613195
The Craftsman 8 Rail Extension Kit (Belt Drive) Gets Your 8 Foot Door All the Way Up. Easy to install, the Craftsman 8 Extension Kit works with belt-driven garage door openers that have a 5 pc rail. Makes it easy to lift a larger 8 ft. door. Installing a garage door isnt fun when the door doesnt lift all the way, thats why weve made this easy to add on 8 Rail Expention Kit thats built with Craftsman quality and design knowledge.