Hi All - I have a 52 Pontiac Chieftain 2 door sedan and looking for some advice where to find new back window rubber for this model. I went to Classic Glass, Pontiac Restoration, e-Bay, Steele Rubber but no luck. It's seems all the sites I look at have all GM models but the 52 sedan model. Will any other models work, like a 52 Olds or Chevy? It's a one piece back glass and has the trim inserted into the rubber. Also, it's been a long time since I replaced glass, any advice and instruction would be appreciated.