Off the top of my head I would say maybe not. The front door windows are smaller on the sedans, and the inner panel of the doors is different. I have some of the regulators off sedans and/or/El Camino's, but just don't remember if they are the same as the coupes or not. If you had a Fisher Body manual for 70 thru 72 cars you could see if the regulators are the same. Duane