1965 non a/c heater assembly i am not quite sure how the gaskets are instralled ? there are 2 gaskets in the kit and 4 pieces to seal.1 the outer housing to the fire wall 2 the fire wall to the heater core support frame 3 the the heater core support frame to the inner housing . ???? am i trying to use to many gaskets ?? or which combination of the 2 are correct in the assembly manual i cant find a good clear pic all i can find is i deffinatly takes a seal between the outer housing and the fire wall thanks any help would be great thanks Don..