Tape is necessary on almost any glass\gasket with an inward curve. If you have stainless trim it goes in the gasket after putting the gasket on the glass, BEFORE installing in truck. The shimming I mentioned is done by CAREFULLY working short piece of vinyl screen spline or rope, I've even used a piece of wire into the groove between the glass and gasket. This shouldn't be required if the corners of the glass weren't cut or ground undersize. Start pulling the rope at the bottom center, do one side, the start at bottom center for the other side. The only lock strips on these trucks are on the back glass and on the quarter glasses if you have a 5 window. Hope I haven't totally confused you, its harder to explain than do, but after doing hundreds of rubber set glass parts over 40 years, I never really tried to write down what I was doing!! John
