The motors are out of an 05-09 buick lacrosse or allure. We found this out when we ordered the Window regulator assembly through first choice once we figured out it was the exact same motor as the standard window motor.
Here is the link for the Doorman solutions page which is the box that the regulators came in from first choice. Im pretty sure the motors changed in 08 or 09 to the ones that are provided in the KOP so you might want to check those out first. So head on over to your local junk yard and start digging!
