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4x4 Explained

Introduction to All Wheel Drive systems - By Eliot Lim

Introduction
This article was originally written in the fall of 1992. Back then as is now, there was a general lack of good information regarding all wheel drive vehicles and how they differ from traditional four wheel drive vehicles. I have updated the original article to mention current vehicles. This article has been very well received by the internet community.
Definitions
Differentials
Differential Locking
Traction Control
Torque Splits
Stability Management Systems
Consumer Considerations
Part-time, manually engaging versus full-time or part-time auto-engaging
4WD and AWD vehicles Today
How to shop for a 4WD or AWD system

4x4 Glossary

Many thanks to ELIOT LIM for producing this article