Hello. Your Duct tape remedy is a Band-Aid fix for the most part. Those boots are designed to flex just like a bellows does. The tape will flex some but the 00 grease will eventually render the glue on the tape useless. The tape will keep the dust out for a while but you had better figure on replacing the boots before next spring. Makes a nice winter project for sure. There has been a rash RER of boot failures this year on the Snapper forum. There have been several postings here on the Snapper forum on how to replace them boots. Just as many opinions on how to proceed with the repair. Good informative reads all of them.
LATER.
LATER.