The SPEC Stage 3 clutch kit for 1999–2004 Mustang Cobra and Mach models is an 11" single-plate kit supplied with a 26-spline disc and an optional low-pedal-requirement setup. Engineered as an upgrade over stock clutches, the Stage 3 kit suits strengthened engines and higher torque output while remaining a direct-fit replacement that maintains conventional single-disc installation and OE-style bellhousing compatibility.
Spec 99-04 Mustang Cobra/Mach Stage 3 Clutch Kit 11 in w/ 26 Spline Disc & Low Pedal Req Option