Thanks Mark! I recall now, my car had butyl sealant in the area you describe. Question... the butyl sealant is used between the windshield glass and gasket,
What seals the gasket to the body flange? Use butyl there too? I seem to remember sealant there too.
Paul
Sealant only between the gasket and the body, apply it along the entire bottom channel and approx 8-12" from the bottom of the A pillar channels upward in the A pillar channels, you only need a 1/4" bead in the 90 degree fold of the channel, apply this bead just before you set the gasket in place and install the windshield immediately, there's NO SEALANT in the gasket's groove/channel/lockbead where the glass fits
FYI if your looking for a good gasket that fits, Legendary is where I purchased mine over years, they were NOS units, I don't know if they still have NOS in supply, worth a try if your willing to spend a little more
Mike