4" Clevis Pulley for Extension Spring Systems – Heavy-Duty with Hardware Kit Strap Hinges Refer to your manufacturer’s installation

Refer to your manufacturer’s installation manual for your door brand

The 308963 Winding Assembly Tool is a professional-grade winding tool designed specifically for the TorqueMaster Plus spring system

Receive real-time alerts and create schedules

safe door movement — extending the lifespan of your entire system

4" Clevis Pulley for Extension Spring Systems – Heavy-Duty with Hardware Kit Strap Hinges Refer to your manufacturer’s installation4" Clevis Pulley for Garage Door Extension Springs Heavy Duty with Hardware Included Upgrade your garage door system with this heavy duty 4" Clevis Pulley, engineered for smooth cable tracking and reliable performance in residential and light commercial setups. Whether you're replacing a worn pulley or enhancing your extension spring system, this durable component is built to handle high cycle use and taller garage doors with ease. This pulley kit