Final Drive

on a RWD what is the purpose of the final drive

• transmit drive through 90 degrees only
• provide a torque increase only
• provide a speed increase
• provide a torque increase & drive through 90 degrees

Heavy Vehicle RWD final drives are use with

• dead axles
• live axles
• twin axles
• beam axles

a typical final drive gear ratio is approx.

• 10:1
• 6:1
• 4:1
• 2:1

a speed increase gives

• torque increase
• torque reduction
• equal speed to each wheel
• equal torque to each wheel

Final drives 1n front engine transverse arrangements

• transfer torque through 90 degrees
• transfer speed through 90 degrees
• transfer torque through 45 degrees
• do not transfer torque through 90 Degrees

the differential

• transmits drive through 90 degrees
• provides equal torque to each wheel
• provide torque to the wheel with the most grip
• provide drive to the wheel with the most grip

the differential

• allows the inner wheel to travel faster than the outer
• allows the outer wheel to travel slower than the inner
• allows each wheel to travel at different speeds

a live axle

• transmits drive
• transmits torque
• transmits drive through 90 degrees
• all answers

Final drives that do not change the direction of drive are

• all FWD's
• all RWD's
• FWD's with transverse engine
• FWD's with longitudinal engine

reduction in speed equals

• increase in speed
• reduction in torque
• increase in torque