pat, depending on which plant and or month your car was built, you have purchased o.e. door glass. LOF (pilkington) is oe for gm mainly in norwood and ppg now pgw was typically for van nuys. nice tool I have one that looks similar but its all one unit. glad to see you went through the trouble of new hardware as this is an area most people tend to forget about doing. but for me for some odd reason its a main focal point.