My abs light has been on since I owned my bird and now I am getting the hard pedal red brake light when I drive. It's a 90' sc. It is parked. I have 93 spindles, 04 mustang calipers, new rotors, stainless lines to install and have been researching converting to non abs. From the hours of research on here I am still confused on what mastercylinder/booster comb I need. Conflicting numbers set up and what have you. I went to the junk yard today and there was a 93 marquis right next to a 90 ls cougar. So I pulled the master cylinder off the marquis. then the one from the 90 cougar to compare, because the booster off the 90 cougar is what I thought i was supposed to use. And there is no way the MC will work with that booster. Can you use the MC from the cougar and just plug the two lines on the left side? I am very mechanically inclined, could someone give a direct breakdown of what I need and do? One of the conversion post I read through said it was a straight swap of parts but then 4 pages in it said you had to be careful and measure the pushrod length. According to that post with the parts mentioned the mastercylinders would work. But today at the junkyard, not so much. Please help. Got to get the bird back on the road. Thanks, Shawn