Hi today I put in a new spring on the rear drum brakes that was broken. I put everything back together and after 3 blocks of driving I lost all braking power and I had to drive the car into the side of my garage to stop. Before this the front disc brakes were working fine and stopping the car fine. Needless to say it scared the heck out of me. Can anyone help me with this. I appreciate any input. Could it be that a brake line broke? Never had this happen to me and feel lucky it happened a block from my house. Thanks so much!