Hey guys I replaced the wiper motor and I just cant seem to get the wiper transmission end to hook up to drivers side . Looks like little washer black think with hole in it needs to snap in the metal pin not easy as looks or seems and they want $100 for them to install it. 85 berlinetta any special tools? I thought maybe the black piece was worn out as thats orginal dont look it but figured go pep boys get new one asked for wiper transmission and they looked at me like i was crazy. I need wipers with all this rain thanks for any tricks,tips