Uses a chain and a two-sprocket arrangement to make the door much easier to lift. Mounts on a 1″ diameter shaft extension fastened to the door axle. Mounts on either side of the door. Chain keeper provided.
![4:1 Reduced-Drive Chain Hoist](https://www.tracrite.com/wp-content/uploads/2022/12/41-Reduced-Drive-Chain-Hoist.jpg)
Uses a chain and a two-sprocket arrangement to make the door much easier to lift. Mounts on a 1″ diameter shaft extension fastened to the door axle. Mounts on either side of the door. Chain keeper provided.