The best option to replace a noisy motor in my opinion is the Lift Master 8500 shown below. No belt, no chain, these are my favorite. They mount against the wall, directly to the pole that runs across the top of your garage. Battery-powered for power outages and super quiet. Much cleaner looking too as you don't need the motor in the middle of your ceiling. A huge improvement. Can be controlled by an app on the phone too.
Amazon.com
