convertible top window sealing rubbers

[adzura]

Hi All,
I have a '92 240sx convertible. The car leaks water around the top of the windows. There are two window rubbers that seal the top and the window itself when you raise the window up. These rubbers slide into the bottom rail of the top frame work. They are in poor shape. Does anyone know where I can find some kind of replacement for these rubbers. I don't have a parts book so I don't even know the part number.

Any help would be appreciated......

Andy