windsheild gasket

[BrianH]

I have 1976 Sceptre in which the windshield is leaking. I contacted American Marine as some of you suggested to purchase new seals. They told me the company had been sold and they could not tell me which gasket my boat took.Does anybody know the part number of the gasket i should purchase for my boat; I,m reluctant to pull out a piece of my windshield gasket to match up without a replacement in hand as it is so brittle.
Thanks for your help