I myself have had a lot of problems with brakes on my 89 Raider. I have replaced the front calipers, not once, not twice, but 4 TIMES on the same side (drivers side). Now, NAPA was good about replacing the calipers, but there seemed to be alittle problem with them. When they were remanufactured, it seems the hole for the brakeline (I am not a technical guy so bear with me) was a little bigger then the original, so it leaked fluid. Not at first, and not a lot. But the next day I realized it REAL quickly when the pedal went to the floor. Took over an hour to get the seat outta my butt cheeks,lol. Friend of mine at work is a mechanic and looked it over. He noticed the problem and used teflon tape to wrap the threads around the line, so now it doesn't leak. But, since I had had so many problems with the brakes, I went ahead and changed the master cylinder and brake hoses, rotors, and front calipers/rear pads. NOW if anything else goes wrong with the brakes, I am at a loss. Hope this never happens to ya'll.