Don't know what the parts may be or be called, as they are not there, but I have new door glass with the frames and the lower frame has 4 weld-nuts and the phillips head screws, but in the door, the window regulator has the typical 2 rollers. No parts were found in the door insides. The PO has no clue. I don't find the parts in the linked suppliers info. Must be a part that goes between to connect the rollers to the window frame. The truck is a 50 GMC. What the hey. Thanks in advance ( design ) Jon
