If your Mustang Door Window moves slower than molasses in the winter time, you probably need a new Power Window Motor. If the Door Window doesn't move at all, it could be the Window Motor or the Power Window Switch. The Power Window Regulators are not available for 79-93 Mustang, but we do have options for most 94-04 Mustangs.
I have been ordering items from Latemodel Restoration for many years. I've found them to be exceptionally professional, timely with order processing and shipping correct items ordered. I've never received an incorrect item on an order.