Title: Demonstrate knowledge of drive-pinion and ring-gear service and set-up including depth, preload, backlash and gear-tooth contact.
Course: Automotive Technology III (20104-III) > Section: MANUAL DRIVE TRAIN AND AXLES: Differential and Drive Axles

Demonstration should include

- using a dial indicator mounted to the housing to determine the backlash and runout of the ring gear
- measuring the depth and gear-tooth contact patterns
- preloading the bearing with a torque wrench.

Process/Skill Questions:

- What tools are used to perform this service?
- What does it mean to say the gears are set up too tight?
- Where can bolt and nut specifications be found for this service?
- What methods and procedures can be used to set the pinion depth?
- What is the service interval for axle fluid replacement?
- How is the fluid in an axle assembly measured?
- How is backlash measured?