Chapter 1 The Automobile 15
Figure 1-18. The drive train transfers engine power to the drive wheels. Study the differences between the two common types of
drive trains. A—Front-engine, rear-wheel-drive vehicle. B— Front-engine, front-wheel-drive vehicle.
B A
Engine
Transmission
Differential
Front
drive
axle
Dead axle Rear
drive axle
Differential
Drive shaft
Manual
transmission
Clutch
Engine
Clutch
Manual transaxle
Figure 1-19. A manual transmission uses gears and shafts to achieve various gear ratios. The speed of the output shaft compared
to the speed of the input shaft varies in each gear position. This allows the driver to change the amount of torque going to the drive
wheels. In lower gears, the car accelerates quickly. When in high gear, engine speed drops while vehicle speed stays high for good
fuel economy. (Ford)
Input shaft
from clutch
Sychronizer for
shifting gears
Shift
mechanism
Gear shift lever
Output shaft
to drive shaft
Gears
Transmission case