Hello: Several months ago I installed drivers door window, vent, and regulator. Works great, window easily rolls up and down. Yesterday I did the same to the Passenger Door. The window is very tight. Very hard to roll up and down. The regulator is good and actuated freely. There does not seem to be any meaningful adjustment on these windows. Any ideas why drivers window works great but passenger side is very hard to operate? Ideas to correct this? Thanks.
