I know that there are those out there that will flame me . . .HOWEVER, I did change the drum brakes on the front of my 1970 Chrysler 300Hurst to Disc and DID NOT change the dual reservoir master cylinder. The one thing you have to realize, is you need to be vigilant on checking the fluid level of the front reservoir, as the disc brake pads do wear and the caliper cylinders move to accomodate, thus reducing the level in the master cylinder. As long as it doesn't go dry, you are good. I know all this from REAL WORLD experience !! Sure it is a pain to keep checking the level, but if you have just put a new master cylinder on the car, why go to further expense ??? . . . just my two cents worth . . .

Cheers

Mark