where can i get the front windshield rubber gasket as well as the rear window rubber gasket? this is a 66 2 door 300 deluxe

I'm not vary familar with the 300's but don't they use the small type of windshield mounting all the other Chevelles use? If so, you don't have a rubber gasket, you use butyl tape from the auto part store. A rope of "tar" basicaly.

wow i didnt know chevelles didnt have rubber front and rear window rubber... intresting.