Originals or early replacements both worn
That means a lot of openers out here are either originals from that build window or a first replacement installed sometime in the 2000s - chain-drive units on steel rail, often with the logic board and drive gear both worn past the point of a cheap fix. We carry openers that match that installation footprint: standard chain-drive and belt-drive replacements sized for the rail and header clearance typical of an 8-9 foot residential door from that era.
