That is not how antilock brakes work. I too have an old Ford with rear antilock brakes, I bought it new 1998.... Also the way the antilock brakes work on my 1997 Ford all they do is release the brakes when the anti lock kicks in. So I'm going 50mph, have to make a quick stop, jam on the brakes, the anti lock kicks in and I'm still going 49.99mph....