SERVICE MANUALFUNCTIONIn examining the drive line, it would be well to startwith a review of drive shaft operation. A criticalexamination of why it is there and what it must do maybe helpful in analyzing its effect on the entire drive linesystem. A driveshaft’s functions can be briefly describedas follows:1.It must transmit torque from the transmission to theaxle. This requirement makes it necessary that thedriveshaft be capable of transmitting the maximumlow gear torque developed by the engine andtransmission ratio and any shock loads which maydevelop. It must also be capable of rotating at themaximum speed required for vehicle operation. Thisspeed is often engine speed increased by anoverdrive ratio in the transmission.2.The driveshaft must operate through constantlychanging relative angles between transmissiondriveshaft and axle.3.The length of the driveshaft must be capable ofchanging while transmitting torque. Length changesare caused by necessary axle movement due totorque reaction, road deflections, braking loads, etc.CTS-4017 - Page 4PRINTED IN UNITED STATES OF AMERICAFig. 1 Typical Parts Identification
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