Window fitment in aftermarket door

[Richard]

Somehow, I gathered that the side glass was being pinched by vent window track and back of door frame not allowing to go all the way up. FWIW my power window regulators allow the side window channel to show about 3/16"-1/4" when fully rolled up. Cannot remember what it was like with stock regulators. I am using stock glass and channel.
From what I have heard aftermarket glass is thinner than original. Window rubber, felts, etc. are all made to the factory glass. Have heard problems with front/rear glass leaking because of this. Never even thought about side glass.