Guys I finally had the time to take my master cylinder off of my 57 and rebuild it. The information that I got from you guys really helped. Hardest part of the job was laying on the ground under the truck. Reinstalled the rebuilt unit and got the wife to pump the brakes and didn't take no time and we had a full pedal. Man was I ready to take her down the road. All is well with the brakes again.
Ole skool Trucks drive