Clutch & Hydraulic Release System
Sitting between the rear of the 4.9L crankshaft and the input shaft of the M5OD-R2 transmission, the clutch system lets the driver smoothly disconnect and reconnect 260 lb-ft of engine torque using a self-adjusting hydraulic Concentric Slave Cylinder (CSC).
- Driven Disc & Spline
- 11.0 in (280 mm OD) · 10-spline 1-1/16" hub
- Flywheel Ring Gear
- 164 teeth · Nodular cast iron (E8TZ-6375-A)
- Master Cylinder Bore
- 0.70 in (17.78 mm) · Firewall mounted, DOT 3 fluid
- Concentric Slave Travel
- 11.5 mm axial release stroke around input quill
Part Assemblies in Clutch & Hydraulics
164-Tooth Cast-Iron Flywheel & Needle Pilot Bearing
Rotational inertia reservoir, starter ring-gear interface, primary clutch friction surface, and transmission input-shaft support.
Diaphragm-Spring Clutch Pressure Plate & Cover
18-finger Belleville cone spring and nodular iron pressure ring that clamp the clutch disc with over a ton of force.
11-Inch Torsional-Damper Clutch Driven Disc
Waved Marcel cushion springs for silky engagement and coaxial coil dampers that filter engine firing spikes.
Concentric Slave Cylinder (CSC), Release Bearing & Quill
Coaxial annular hydraulic actuator that slides directly around the transmission input quill—eliminating external release forks.
Clutch Pedal, Firewall Master Cylinder & Safety Switch
Driver pedal leverage, hydraulic pressure generation, and the starter-interlock safety switch.