Re: Disc Brakes aren\'t Brakin!!!!! HELP
The problem sounds like the Master cylinder. If the piston in the master is too small, it won't push the disc brake piston. The calipers require a higer volume of fluid to move than the old drums. I have encountered this problem when I made the changeover, and solved it with a master cylinder from a 77 Bronco. Only problem is the hoses are on the wrong side. Do a little homework on a later model master cylinder from a vehicle with 4-wheel disc brakes, and you will find that it will bolt up correctly. Caddy's had disc brakes, and I know the master cylender has been used in old Bronco's, just not sure what year.
Hope this helps