I have a 69 New Yorker and the drivers window motor runs but does not move the window. I can move the window by pulling the window up or down with my hand. Can this be fixed with parts from a 74 Newport parts car?

When you say "the motor runs" do you mean that you hear it running but the window doesn't move?

The drive gears in the motor are plastic with plastic internal parts that crumble with age & use.
You hear the motor run but it won't move the window regulator.

The motor should just swap out for the later one if that's the problem.

Another trick is to use a motor from the rear window as it usually saw less wear than the left front one.

I can hear the motor run but the window does not move at all. The gears must be broken.

I will check the windows on the parts car and grab any motors that work.

Just be careful taking the motors off.That spring they use is powerful to break fingers and cut you wide open if it lets loose.I know.Rocky

I believe they still sell the plastic gear at most dealerships (or used to) If not the motors should be a direct swap. After all Ma Mopar was Detroits grandmaster of interchangability.

I need to fix both drivers side doors. Will the passenger side work on the drivers side or are the motors different from side to side?

left and rights are different- also due to the years the electcial plug maybe different but the motors are the same!

before you take the motors off the arm- clamp the main part and the arm together as the spring will come back and break your fingers!!!!!

John Mac