Good luck proving it was the gears fault they failed and not a incorrect install. I do belive they have warranty " to be free from manufacture's defects".
I don't know too much about the specific's. Just call tomorow and see, I do know the buddy hookup thing doesn't work so well as far as waranty thing goes.
call and talk to micah extension 5560 he has always taken extremely good care of me he warrantied a r&p that was snapped off clean at the yoke he gave me a install kit r&p u bolts and a gasket the only thing he had to charge me for was the yoke that had obviousely been bound up