Hello, I have a 64 300K with power brakes. The brake booster is located above the driver side front tire. Yesterday morning when I got in to go to work I noticed that the pedal now goes all the way to the floor. The brakes do work, but just barely. There is fluid, and pumping the brakes has absolutely no effect. Vacuum is at around 18 at idle. The only previous indication that something was wrong was that sometimes when the pedal was depressed there would be a groaning noise and a rapid vibration in the pedal that would go away if you stabbed the pedal, but would continue if you didn't. This happened twice within the last couple of weeks and the brakes always worked great until yesterday. This car is my daily driver and only mode of transportation for work or otherwise. I need to drive to work today, then I have the next 3 days off to figure out the problem and fix it. Any help pointing me in the right direction to start will be greatly appreciated. Thanks, Sean __________________________________________________ Do You Yahoo!? Great stuff seeking new owners in Yahoo! Auctions! http://auctions.yahoo.com