I dont think anyone would release a gearset that was 'not lapped correctly' or any other defects that could be used to return an item or make it unuseable.. Usually the value line just doesnt include a warranty past 90 days or whatever the base warranty is. Same with rebuilt starters. low line 90 days mid grade 1 year high line lifetime and NEW with a lifetime. All the same starters sans the NEW ones. Ask Rob.