A door built for a 1953 garage in Camp Hill is almost always lighter than what you'd put up today - thinner panel stock, sometimes wood, sized for the smaller single-car openings common in that era. Pair that with a modern chain-drive or belt opener rated for a heavier insulated steel door, and the opener ends up doing more lifting work than the door needs, which strains the trolley and the header bracket faster than it should. The region sits in a cold-climate band with real winter severity, and that compounds the issue - cold grease in an old opener chain, plus a door that's already lighter than spec, is a common combination for a motor that labors every time it starts. The fix isn't a bigger opener. It's matching horsepower and drive type to the actual door you have, not the door the opener box assumes you have.