Homes in Sun City Center mostly date to around 1997, inside the broader Brandon-area build window of 1979 through 2013 with a median year of 1991 - so this town sits a bit newer than the area average, but still old enough that original garage door hardware is the norm, not the exception. An opener installed when the house was framed is now pushing toward three decades of chain or belt cycling, well past what any manufacturer rates that motor for.
The climate here is mild temperate, so we're not fighting the freeze-thaw cracking or extreme humidity swings that chew through seals and hardware in other parts of the country. That actually works in your favor - these openers and their drive components have mostly worn out from age and use, not weather damage, which means a straight swap is usually enough without extra corrosion repair tacked on.