Hi all re my drivers doors glass, I have removed the door card and fond that all three rivets to metal plate have broken and now the door glass has come away from its runners . to get the door glass back on the runners can I take two blue plastic bits on the mec arms that go into the runners off, fix them in the runners then clip them back onto the mec arms ? would it be better to re rivet or use nut and bolts ? I do hope all that make sense .