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Just refitted it all using the factory and Haynes manuals as guides and is still coming up incorrectly. It actually seems fine until I fit the front sash at which point it is being pulled forward. Super frustrating!

Sorry for the delay, hard to get time in garage with christmas! Hope you all had a good holiday. Here are some photos of the window and regulator. Sorry if massive, I'm using my phone. Certainly looks to me that one of the regulator arms is bent as it is fouling when inside the door and doesn't look straight. Thanks again for all the help.

Would the orientation of the spring/regulator arms cause there to be this issue? The spring did come off when I was cleaning it up.

Hi All,I am hoping for some help/advice on an issue with my 260Z's window. Since buying the drivers side window was quite stiff to wind up/down but i thought it was just because of its age. The other day however as winding up there was a loud 'pop' at which point the window dropped and had come off of its guides.I took the window and regulator out, cleaned and re-greased and reassembled however it is now just as stiff and wont go all the way up as seems misaligned. I have attempted to adjust it using the front sash and rear guide however can not get it to sit right.I am starting to think the regulator itself may be damaged as it appear to be fouling on itself.Does anyone have any ideas or advice on what to try next? Thanks, Ash