If your brake lights don't work in your 1980-1993 Mustang, then this could be your problem. This switch attaches to the brake pedal assembly and sends power to the rear lights when the pedal is pressed. The terminals normally get corroded which breaks the electrical connection and stops current going to the break lights. This is just one of the many parts that LRS offers to help you with your Fox Mustang Restoration Project.
I've done the majority of my aftermarket mustang parts shopping at American muscle, recently finding out about this website I'd just like to say it is a great experience to shop here, the lay out is easy and simple to navigate, and you have thousands of parts that no other website has. The shipping is very fast and all te updates are great. I will be doin much more shopping with y'all, so thanks for being so badass haha