GM Service Manual Online
For 1990-2009 cars only

Driving Members


Object Number: 3651  Size: SH

The clutch driving members are two flat surfaces machined to a smooth finish. They are:

    • The rear face of the engine flywheel
    • The front face of the clutch drive plate

The dual mass flywheel is made of nodular iron and weighs 16.45 Kg (36.2 lb). The design employs a primary and a secondary flywheel system. The system is connected by two rows of torsional damper springs, with the interface riding on a ball bearing arrangement. Because engine combustion impulse causes rattle, by shifting some flywheel mass and inertia to the transmission, the dual mass flywheel design minimizes rattle in the transmission gears.