RAM Clutches 489 Mechanical Release Bearing offers an efficient method of setting up a clutch release system in Street, Restoration Vehicles, and Resto-Mods (Restoration + Modern Parts/Technology). Bearing assemblies are available for most early and late model applications including Tremec, Muncie, T-10, Saginaw, and T56 transmissions. This kit includes the bleed line and all mounting hardware. Installation of this Clutch Release Bearing requires an aftermarket Bore Slave Cylinder of 3/4-Inches and Fuel Line Inlet Size: (-3) AN feed line. Complete kits are also available for late model LS1, LS2, and 05 up Mustang that include all the fittings and adapters to connect to the factory master cylinder. RAM Clutches are the Champions Choice.