Generally, there seems to be two (2) types of garage doors in The Villages - a single track and a double track for the bottom seal. Lowes & Home Depot sell the double track but I could not find the single track locally. The single track is a Clopay garage door. I found a single track bottom seal on Amazon
Amazon.com
Applying liquid soap helps to slide the seal along the gasket. Two people make installing the track easier, a lot easier.
My bottom seal was 9 years old and was at the end of its useful life. Florida weather and sun (UV rays) deteriorate plastic and rubber over a few short years. Same is true for batteries. I've been in Florida over 30 years and I generally get 3 years life out of auto battery. If I make it to 4 years, I replace the battery because I know it's only a matter of time before the battery is dead.