Sears Garage Door - reuses chain/cable and mount
I have a Sears garage door opener at least 25 years old. The motor is having limit switch problems. I can try some more to figure out why it will not properly drive the door up/down... but as the old remote and receiver are in need of replacing soon I wonder if I can buy a new opener and just use the motor assembly (motor, sprocket, up/down limit switches and "box" that mounts them from the ceiling hanger) on my existing arrangement. I think all that has to match is the sprocket to the chain, and I can perhaps reuse the existing sprocket if the new unit has a different pitch for the chain. Or it may be better to use the new chain and cable, cut to fit my length requirements. Guess all I want to reuse is the steel framework the drive runs on.
Here I assume garage door openers are still made to pull the door up and down using a chain-cable/sprocket drive mechanism.
I have no reason other than fit to purchase a Sears opener, I'd like to just to got he nearby Lowes or Home Depot and buy what they have.