Take the panel off the bottom of door ,crank the regulator down so you can release the window ,regulator will come out through the bottom , worked that way on my 53 ,
The issue is the arm will not come off the window channel. It appears to only remove from the farthest side away from the regulator. Once this is off, the regulator can easily come out the hole. I loosened the division bar and finally slid the arm out.....
