Course on Locking Differentials in 4×4
Online 300-hour course on locking differentials in 4×4. 6 modules covering API 1560 (gear oil classification, API GL-5), SAE J306 (viscosity grades of transmission oils) and KISSsoft. Assigned tutor and open enrolment.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Explain the role of the differential and the loss of traction on uneven terrain.
Compare open, limited-slip and locking differentials.
Plan the installation and adaptation of a locking differential.
Apply criteria for the correct use of the lock while driving.
Carry out maintenance and diagnosis of the axle and the locking mechanism.
Assess the legality of the modification and the documentation required.
Estimate repair costs and the cost of upgrading the traction system.
Who it's for
- 4×4 vehicle workshop technician wishing to specialise in Locking Differentials in 4×4.
- Off-road vehicle preparer wishing to specialise in Locking Differentials in 4×4.
- Transmission mechanic wishing to specialise in Locking Differentials in 4×4.
- Off-road driving instructor wishing to specialise in Locking Differentials in 4×4.
- Vehicle modification engineer wishing to specialise in Locking Differentials in 4×4.
- Service vehicle fleet technician wishing to specialise in Locking Differentials in 4×4.
- Engineering or science graduates looking to enter automotive workshops.
What you'll work with
- API 1560 (gear oil classification, API GL-5)
- SAE J306 (viscosity grades of transmission oils)
- ISO 10300 (load capacity of bevel gears)
- AGMA 2005 (bevel gear design)
- RD 866/2010 (processing of vehicle modifications)
- Vehicle Modifications Manual (Ministry of Industry)
6 modules · 300 h
1.1Function of the differential and why it exists1.2Loss of traction at a wheel with lower grip1.3Torque distribution and limitation by the spinning wheel1.4Open, limited-slip and locking differentials1.5Centre differential and its role in all-wheel traction1.6Electronic brake systems as a simulation of locking1.7Advantages and disadvantages of each solution1.8Effect on steering and wear1.9Common terminology1.10Workshop: analysis of the configuration of three vehicles
2.1Disc-type limited-slip differential2.2Helical gear differential2.3Viscous differential and its behaviour2.4Mechanical automatic locking differential2.5Manual locking: pneumatic, electric and mechanical2.6Degree of locking and preload2.7Behaviour in bends and on straights2.8Combining locks across several axles2.9Compatibility with electronic braking systems2.10Practical: selecting a solution for a given use
3.1Compatibility with the axle and the driveshafts3.2Modification of the casing and the half-shafts3.3Pneumatic lock installation: compressor and lines3.4Electrical installation and controls3.5Adjustment of preload and backlash3.6Verification of the tooth contact pattern3.7Reinforcement of driveshafts and bushes3.8Effect on the life of other components3.9Approval of the modification and documentation3.10Practical: planning an installation
4.1When to lock and when not to4.2Sequence for activating the locks4.3Risks of driving locked on surfaces with grip4.4Steering behaviour with the lock engaged4.5Driving on rock, mud and sand4.6Combined use with the transfer case4.7Getting out of stuck situations with and without the lock4.8Common driver errors4.9Recommended practical training4.10Practical: decisions on use in five situations
5.1Axle oil and additives for limited-slip differentials5.2Checking levels and leaks5.3Diagnosing a lock that does not engage5.4Air leaks and compressor failure5.5Electrical control failure and warning lights5.6Axle noise and how to interpret it5.7Wear of discs and clutches5.8Play and excessive backlash5.9Recording interventions5.10Practical: guided diagnosis of three faults
6.1Dismantling and inspection of the differential6.2Criteria for replacing components6.3Adjustment of crown wheel and pinion6.4Assembly and tightening torques6.5Repair versus replacement of the assembly6.6Cost of the installation and its justification6.7Spare parts and availability6.8Common installation errors6.9Alternatives without modifying the vehicle6.10Final project: traction improvement project for a vehicle
How you'll learn
100% online training on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. No fixed timetable: students progress at their own pace within the intake, which makes it easy to combine with work.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is KISSsoft, MATLAB/Simulink, advanced Excel, Jaltest, in free, academic or evaluation versions. Tests are studied using real procedures for obstacle-crossing trials on a cross-axle track, verification of pneumatic or electric locking, backlash control and tooth contact pattern. Assessment is continuous, module by module, plus the final integrating project.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Explain the role of the differential and the loss of traction on uneven terrain.
Compare open, limited-slip and locking differentials.
Plan the installation and adaptation of a locking differential.
Apply criteria for the correct use of the lock while driving.
Carry out maintenance and diagnosis of the axle and the locking mechanism.
Where this takes you
Requirements
- No prior qualification is required.
- Internet connection and a computer capable of running the programme's software.
- Spanish language proficiency sufficient to read technical standards documentation.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme totals 300 hours spread over 3 to 5 months. That is between 10 and 15 hours a week on average, compatible with a full-time job.
You will work with KISSsoft, MATLAB/Simulink, advanced Excel and Jaltest. Free, academic or evaluation versions are used, and the tutor indicates the free alternative where one exists.
An own SEIUM diploma upon passing continuous assessment and the integrating project. It is in-house training, not an official Ministry qualification.
Yes. Modules passed in a course or postgraduate diploma in the same area are recognised towards the advanced programme. Check the recognition policy when you enrol.
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