ABS was optional on my car, and most of the readily available replacement master cylinders are marked either "ABS" or "non-ABS". The "ABS" units are rare and are "remanufactured" only.
I've been warned off of "remanufactured" units, and I want a new master cylinder.
I'm trying to understand how important the "ABS / non-ABS" issue is. What exactly does the master cylinder do differently for an ABS system?