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In this window regulator is a scissor type and gear typemechanical regulator. If the window is going up crooked usually this meanseither the tab broke off the window where it attaches to the regulator armwhich is the most common problem, or the actual regulator itself is bent ormisaligned. There's no way to know for sure until you remove the door panel anddisassemble the door components. You either need the window glass which comeswith the attaching tabs or you will need the window regulator itself. The onlyother thing that I have seen happen is if the bolts come loose and fallout itwill cause the glass to go up crooked also. If this is the case all you need todo is locate the bolt in the bottom of the door and reinstall it into the glass.