Anne:
I recommend that you do a lot of research on your intended conversion to "disk". As the brakes you are replacing are double cylinder(wheels), self-energizing (by design engineering),requiring little pedal pressure, absolutely the best of the day.
The drawback is that the system is not dual master cylinder (a safety effort of a later time).
I have no doubt that your Saratoga has power brakes,but that original unit hasn't enough power to energize DISK BRAKES up to what you're used to on your daily driver. PLEASE!!! DON'T FIND THIS OUT THE HARD WAY, DO MORE INVESTIGATING.
look under AACA, PACKARD AUTOMOBILES, PAGE 5 OR 6, BRAKE PEDAL RELOCATION, CRAIG. READ EVERYTHING.
GOOD LUCK, DUBOISTOWN PA. DUDE, JAY <img src="http://www.aaca.org/ubbthreads/images/graemlins/blush.gif" alt="" />