Old motor about to be replaced. This motor is a chain drive LiftMaster that is pre 1994. This was quite evident when the garage door was inspected with no Safety Sensors. The new motor has safety sensors which protect the people using your garage door.

After installation of the new belt drive garage door motor. You can see that his motor is quite modern compared to the removed motor. You can see the new white wire that stretch along the ceiling. These wires will carry the safety sensors data to the motor to assure that they garage door does not crush anything that is under the traveling area.