I have a 1995 Sentra GXE and is in the process of converting to rear discs. My Master Cylinder needs replacing so I want to switch right over to the Altima one. I know that I need the MC for the U13 (1993-1997) Altima SE with rear disc, but I don't know if it is the ABS or Non-ABS one. Does anyone know which one and what are the differences? Thanks.