Ok , So I got my gals 53 stude up and running as it had sat for 2 years in a garage. We blead out the brakes and it is still only at 3/4 pedal heigthe, I can move the truck forwared and backwards and have to pump the pedal 3 times to have brakes and stop, after this point I go to put itforward or reverse gear and the brake pedal is all the way on top and the truck will not move. if I wait about a minute or more the truck will once again move but the process starts all over again,. Can any one give me a idea of what is happening and how to go about fixxing this issue, also the rubber brake lines have already been replaced. Thank you Spanky