Standard

AUT 134 - DRIVELINES

Course Description

Introduces basics of rear-wheel drive, front-wheel drive, and four-wheel drive driveline related operation, diagnosis, service and related electronic controls. Topics include: drive shaft and half shaft, universal and constant-velocity (cv) joint diagnosis and repair ; ring and pinion gears and differential case assembly; limited slip differential; drive axle shaft; four-wheel drive/all-wheel drive component diagnosis and repair.

Competency Areas		Hours
Drive Shaft and Half Shaft, Universal and Constant-Velocity (CV) Joint Diagnosis and Repair		Class	2
Ring and Pinion Gears and Differential Case Assembly		D. Lab	0
Limited Slip Differential		P. Lab/O.B.I.	6
Drive Axle Shaft		Credit	4
Four-wheel Drive/All-wheel Drive Component Diagnosis and Repair
Prerequisite:	AUT 122
Corequisite:

Course Guide

Competency	After completing this section, the student will:	Hours
		Class	D.Lab	P.Lab/ O.B.I.
Drive Shaft and Half Shaft, Universal and Constant-Velocity (CV) Joint Diagnosis and Repair		5		10
	Diagnose constant-velocity (CV) joint noise and vibration concerns; determine necessary action. Diagnose universal joint noise and vibration concerns; perform necessary action. Replace front wheel drive (FWD) front wheel bearing. Inspect, service, and replace shafts, yokes, boots, and CV joints. Inspect, service, and replace shaft center support bearings. Check shaft balance; measure shaft runout; measure and adjust driveline angles.
Ring and Pinion Gears and Differential Case Assembly		3		15
	Diagnose noise and vibration concerns; determine necessary action. Diagnose fluid leakage concerns; determine necessary action. Inspect and replace companion flange and pinion seal; measure companion flange runout. Inspect ring gear and measure runout; determine necessary action. Remove, inspect, and reinstall drive pinion and ring gear, spacers, sleeves, and bearings. Measure and adjust drive pinion depth. Measure and adjust drive pinion bearing preload. Measure and adjust side bearing preload and ring and pinion gear total backlash and backlash variation on a differential carrier assembly (threaded cup or shim types). Check ring and pinion tooth contact patterns; perform necessary action. Disassemble, inspect, measure, and adjust or replace differential pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case. Reassemble and reinstall differential case assembly; measure runout; determine necessary action.
Limited Slip Differential		2		10
	Diagnose noise, slippage, and chatter concerns; determine necessary action. Inspect and flush differential housing; refill with correct lubricant. Inspect and reinstall clutch (cone or plate) components. Measure rotating torque; determine necessary action.
Drive Axle Shaft		5		10
	Diagnose drive axle shafts, bearings, and seals for noise, vibration, and fluid leakage concerns; determine necessary action. Inspect and replace drive axle shaft wheel studs. Remove and replace drive axle shafts. Inspect and replace drive axle shaft seals, bearings, and retainers. Measure drive axle flange runout and shaft endplay; determine necessary action.
Four-wheel Drive/All-wheel Drive Component Diagnosis and Repair		5		15
	Diagnose noise, vibration, and unusual steering concerns; determine necessary action. Inspect, adjust, and repair shifting controls (mechanical, electrical, and vacuum), bushings, mounts, levers, and brackets. Remove and reinstall transfer case. Disassemble, service, and reassemble transfer case and components. Inspect front-wheel bearings and locking hubs; perform necessary action. Check drive assembly seals and vents; check lube level. Diagnose test, adjust, and replace electrical/electronic components of four-wheel drive systems.

Suggested Resources

Books

Duffy, J. E. (2000). Modern AutomotiveTechnology. South Holland, IL: Goodheart-Willcox.

Erjavec, J. (2000). Automotive Technology (3^rd ed.). Albany, NY: Delmar.

Erjavec, J. (2000). Automotive Technology Workbook (3^rd ed.). Albany, NY: Delmar.

Gilles, T. (1999). Automotive Service Inspection, Maintenance, and Repair (1^st ed.). Albany, NY: Delmar

Toboldt, W. K., & Johnson, L. (1995). Automotive Encyclopedia. South Holland, IL: Goodheart-Willcox.

Webster, J., & Owen, C. E. (2000). Basic Automotive Service & Systems (2^nd ed.).

Albany, NY: Delmar.