Glass back in. The new guide is all plastic! If you torque the window down you'll make recesses for the bolt heads.. So maybe make sure the window feels good and even! I hooked the door panel up again, holding it. Loosened the bolts to barely snug for the glass, ran the window all the way up and back down to where I could tighten it in attempt to center the glass.. Unfortunately, I'd already made the mistake of compressing the plastic, but maybe you could avoid doing the same?