GM Part # 20151689
This is a GM driver & passenger door glass window rear guides. This is the rear window guide and fits all G-body models. They are almost always broken and are the cause of most glass to weatherstrip sealing problems on the doors and side windows.
*Note: Some are made in Black & some come in White. It depends on the GM supply.
Price is per unit. 1 needed to do driver or passenger sides of your vehicle. They will work on either driver or passenger side.