Replacement Master Cylinder Only - Fits T-5 & TKO 500/600 Transmission. Fits 4.6L W/ 2 Valve Head Only. The Mcleod Hydraulic Throwout Bearing Conversion Kits Is Designed To Change Over Your Cable-Operated Clutch To Hydraulic Power. It Produces A Softer Pedal Effort, Giving You More Manageable And Smoother Clutch Operation. The Kit Is Also Self-Adjusting, Eliminating Difficult Pedal Adjustments