Sorry Don, I got sidelined.
My original Manual shows 2520-566-7 as being for front and rear.
It shows 2520-900-1 for 1/4 (Coupe?)
However, I was able to dig out some old motors and these are the # cast on them.
2520-902 and 2520-903. These are left and right facing as the mount. I can send photos.
If needed, I can describe how I remove them. Extreme caution needed!!!
You can also have them out in a few minutes if you block the window from falling with a 2X4, and them use hole saw to cut a 1" hole over the bolt behind the door innerskin.
Ray