2fast4u1989

hey guys, ok i have a 95 lt1 6speed. i replaced my slave cylinder about 7 months ago due to the clutch pedal sticking to the floor and not coming up. that fixed my problem, now 7 months later i look in the reservoir and the fluid is black. i also experience vibrations now sometimes when shifting, upshifts and downshifts. could this be the clutch master cylinder giong bad due to the fluid being black? also clutch was replaced in may of 2010, its a ram muscle street clutch