ASE A3 · Manual Drive Train & Axles
Drive Axle
Rear drive axle service: ring and pinion setup, differential case work, limited slip and locking units, and axle shafts, bearings and housings.
- Questions on the A3 test
- 7
- Share of the test
- 18%
- GearheadPass questions
- 41
- With exhibits
- 9
What this area covers
ASE's task list for Drive Axle on the A3 Manual Drive Train & Axles test groups into these tasks. Expect diagnosis-first questions: what's the most likely cause, what should be checked next, and which technician is right.
- Ring and pinion noise and leaks
- Pinion depth, preload and backlash
- Gear tooth contact patterns
- Differential case and runout
- Limited slip and locking units
- Axle shafts, bearings and housing
How to study it
- This area carries 7 of the A3 test's questions (18%). Give it study time in proportion.
- Work the free questions first, then read every explanation, including the ones you got right; the reasoning is what transfers to new questions.
- 1 of the 5 free questions here are Technician A/B items. Judge each statement on its own before you pick A only, B only, Both or Neither.
- 2 free questions use an exhibit. Read the exhibit's numbers before the answer options.
- Always confirm specifications in the vehicle manufacturer's service information. Test questions assume you would.
Free practice quiz
5 Drive Axle questions with explanations
All 41 Drive Axle questions are in the app
Plus a full-length A3 mock, flash cards, and English or Spanish on every question.
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Four-Wheel/All-Wheel Drive
Diagnosing and servicing 4WD and AWD systems: transfer case removal and overhaul, shafts and front axles, engagement and actuation controls, and tire size matching.