Need help with lower windshield trim install

The lower stainless trim on my windshield for a 72 Dart, having trouble getting it on. It was off when I brought the car home. I'm assuming new gasket was installed. My question is on the lower edge only of the rubber gasket it has a rubber lip. Seems like maybe in needs to be trimmed off. I can't seem to get the stainless trim over or even under this rubber lip and get it to clip in. Anybody else dealt with doing this and had any problems?