I have them from a 74 challenger, also with bad teeth. I don't know if you cut off the extra teeth if you will have full range, opening and closing the window. I would also consider the one year only as a valuable part to sell. I have a 70 challenger and I can tell you sometimes I have to settle for non 70 parts. Maybe if you get a cuda regulator you can change the shorter crank to a challenger crank. Just my 2 cents