NOS, or new old stock does not mean the part is mint or even perfect! General Motor Company has always been in the business of building mass produced vehicles and parts, NOT show cars. When we describe something as being NOS that means it is new and has never been installed on a car. Any flaws are mentioned and most times even pictured in the description so there should be no surprises. We try our best to accurately describe the parts we sell but we can and do make mistakes just like everyone else. If you have ANY doubts about the condition or application of the item being sold then please ask questions before bidding!!!