Jeff Caplan (odometergears.com) was the guy on here. His username was hamonbagel.
He did make the gears about 2 years ago, and the first prototypes were weak, due to a design flaw, but the revised ones have the same track record as those at sunroofgears, etc. Some still do break.. most issues are from misalignment after refitting the gear (operator error) but some have infact broken from no fault. Lifetime replacements are valid, and the company (I can't speak about all of them, but this one) has been around for YEARS.
they make gears for boats, high-end cars, and many other applications, so my worry about the company leaving is nill-to-none