there are different brands etc, some aftermarket an some factory,, so make sure you get same one as what you have for parts or jut replacfe the entire unit,. they are very common out there and used old ones are cheap for these... if the yards arun you keep old stuff very long in which they dont ever here,...and they rarely ever get anything older than later 90s anyways.. all was scrapped long ago around here when scrap was up high.,.,,.,.., im looking for one for my '75 right now so i can ditch my solid back glass, and i dont need an intact or working latches or lock.... but no one seems ot want to maile me one to 62656 central IL... i have no bed on my truck so it doesnt have the vacuum air issue in front end of bed so leaves and dirt and junk wont fly into cab throguh the open slider glass.