i was driving my 92 t-bird sc and noticed that my handbrake light and my antilock lights were both on so i tapped the pedal and found that my brakes we very hard. i slowly drove the car home and checked some things. the fluid was full so i decided to blead the brakes, blead the front and then went to blead the back. noticed that no fluid was coming out in the back on both sides. does anyone know what could be the problem. any help or suggestions is appreciated. thanks in advance.