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1938 LaSalle Production - GM Heritage Center

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C L U T C H<br />

All series of Cadillac and <strong>LaSalle</strong> use the semi-centrifugal<br />

single dry plate type of clutch. The <strong>LaSalle</strong><br />

clutch is 10½ inches in diameter or 107 square inches<br />

in area; for Cadillac it is 11 inches in diameter and 124<br />

square inches in area.<br />

Semi-Centrifugal<br />

Clutch<br />

The large plate has woven facings for long, smooth<br />

functioning clutch life. Light pedal pressure is achieved<br />

by the design and placement of three small centrifugal<br />

weights. These increase the clutch spring pressure as<br />

the car speed increases to take care of the increasing<br />

engine torque, yet permit the clutch to be held easily<br />

disengaged at low speeds. A waved metal ring between<br />

the facings acts as a cushion to provide smooth<br />

engagement and eliminate chatter. Eight coil spring<br />

vibration dampeners built into the hub insulate the<br />

drive line from engine pulsations.<br />

• 71 •

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