Clutches, Transmissions, and Diffs

I.     Course Prefix/Number: ATA 206

       Course Name: Clutches, Transmissions, and Diffs

       Credits: 4 (4 lecture; 0 lab)

II.    Prerequisite

Interview and consent from the dept. chair

III.   Course (Catalog) Description

Students will learn the theory and operational principles behind the front and rear wheel drive clutch system. Students will learn the theory, operation, repair and troubleshooting on different models of front/rear wheel drive transmissions, driveline and axle assemblies.

IV.   Learning Objectives

  • Describe the purpose of a clutch disc
  • Identify the parts of a clutch disc
  • Identify different types of clutch covers and activation methods
  • Discuss the power flow through the clutch cover assembly
  • Perform the different measurements needed for diagnosis of the clutch assembly
  • Diagnose clutch failure
  • Explain synchronizer operation
  • Recognize internal parts of the manual transmission
  • Define shifter operation of a manual transmission
  • Draw out power flow of the manual transmission
  • Disassemble and reassemble front and rear wheel drive transmissions
  • Calculate gear ratios by using basic gear ratio law
  • Explain the power flow of the rear axle differential
  • Perform measurements on a differential assembly

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at

VI.   Sequence of Topics

  • Day 1 Introduction, Syllabus, and Safety Policy
  • Week 1 Chapter 4 Clutch Parts and Operation
  • Week 2 Clutch Lab
  • Week 3 Chapter 5 Clutch Diagnosis and Service
  • Week 4 Chapter 4&5 Quiz, Chapter 6 Manual Transmission Parts/Operation
  • Week 5 Transmission Lab Inline Transmissions
  • Week 6 Chapter 7&8 Manual Transaxle Operation/Diagnosis
  • Week 7 Chapter 6-8 Quiz, Transaxle Lab
  • Week 8 Finish Transaxle Lab, Mid-Term
  • Week 9 Mid-Term Review, Chapter 11 Wheel Bearings
  • Week 10 Chapter 11 Quiz, Chapters 12&13 Drive Axle and Differentials, Diagnosis and Service
  • Week 11&12 Differential Lab
  • Week 13 Chapter 12&13 Quiz
  • Week 14 Chapter 15 Four Wheel Drive and All Wheel Drive
  • Week 15&16 Chapter 15 Quiz, Transfer case lab, Final Exam

VII.  Methods of Instruction

Grades are based on attendance and participation in class. Quizzes/Tests will be given after lectures. Turning in of lab assignment sheets and performing lab work are essential for the students grade.

Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

Course is taught as face-to-face. There will be lectures and audiovisual presentations dealing with the function of components. Also demonstrations, classroom discussions, small group and individual instruction on disassembly/repair of components

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

 To be supplied by the instructor:

Handouts, shop manuals, instruction books, and manufacturers' specification sheets.

To be supplied by the student:

Note paper and a good quality three-ring notebook in which to keep comprehensive notes and retain a volume of topical handouts generated by the instructor.

Required text and/or workbook.

X.    Methods of Evaluating Student Progress

Class attendance and participation are part of the student grade. Chapter quizzes will be given after every chapter. Students are responsible for turning in his/her lab work. Also, lab participation will be factored into making up the students overall grade.


Homework* 10%
Quizzes 10%
Attendance** 10%
Report 10%
Mid-term Test 15%
Final Test 15%
Lab 30%

* Homework: Late homework will count only 50%.

** Attendance: Student attendance is critical for satisfactory completion of course work. Each unexcused absence will reduce your grade by 2% with a maximum of 5 unexcused absences. Three unexcused tardiness equals one day missed. If needed in certain situations, the student will need to bring in proof of absence.

90 – 100 A
80 – 89 B
70 – 79 C
60 – 69 D
0 – 59 F

Missed lab assignments maybe made up if there is time allotted and with some form of proof why the student was absent.

Tests: The student shall be responsible for contacting the instructor and making arrangements to make-up any missed examinations at the convenience of the instructor.

XI.   Other Course Information

If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at

Resources and support for LGBTQ+ students can be found at

Electronic video and/or audio recording is not permitted during class unless the student obtains written permission from the instructor. In cases where recordings are allowed, such content is restricted to personal use only. Any distribution of such recordings is strictly prohibited. Personal use is defined as use by an individual student for the purpose of studying or completing course assignments.

For students who have been approved for audio and/or video recording of lectures and other classroom activities as a reasonable accommodation by Oakton’s Access Disabilities Resource Center (ADRC), applicable federal law requires instructors to permit those recordings. Such recordings are also limited to personal use. Any distribution of such recordings is strictly prohibited.

Violation of this policy will result in disciplinary action through the Code of Student Conduct.