LIL PWNY
New Member
I did the 13 inch rotor and twin piston caliper swap on my '96 GT. The calipers I used are straight off an '01 Bullitt and the rotors are Brembo 13 inch cross drilled rotors, with MM stainless steel braided lines. The rear brakes are stock calipers w/ cross drilled & slotted rotors. After me and a friend (I pumped as he has a bad knee) bleed the brakes and took it for a test drive there was a huge dead spot in the brake pedal, about an inch where I press it down and nothing then it starts to grab, but not super hard. While on the brakes the clutch works perfect (I believe the hydraulic clutch system is tied into the brake system). Is replacing the master cylinder needed for this swap or no?? Is my master cylinder going bad or did we just not get all the air out of the lines??