next time post off galant in off topic but... remove door panel roll the window down as far as needed to expose the two ten mill head nuts that mount the glass to the regulator, play with the angles some & window should come out then there should be five ten mil head bolts on the inner door frame three to bolt the reg two to bolt a small guide track. don't bother trying to fix it, get another one, once the bend their done.
Before reversing the process check all window track weather strip, usually they tweak the regulator when one slips & binds the glass. use 3m trim adhesive to secure them in place once positioned proper, I.E. glue them in place.
pretty basic once your in there.
If you need more info let me know.