Get a couple of fender washers from your local hardware store and a spring that will be long enough to fit between the edge of your master cylinder and the yoke on the rod that connects to the brake pedal. You may have to enlarge the hole in the washer. This will make sure your brake pedal returns to the full "up" position when you take your foot off the brake. Mine did not and my brakes would not completely release. I have heard from others that had the same problem. The spring solved the problem and made the brakes release properly. Somebody makes a kit for this, but it is a lot less expensive if you do as I described.