Are these window guides a pain to replace? I noticed my window tilts when I put it up. I have to actually grab it and pull it back as it goes up before halfway because at that point it barely moves. This tells me a guide or something that holds the window in place is broke. Would the window be hard to remove too? If I can get it out easily I will pull the one on the passenger side and tint them both. (Just an easier way to tint)