4x4 Terminology
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A/T's
All Terrain tires.
ABS
Antilock Braking System
Air Down
To lower the air pressure in the tires to improve traction off-road.
Air Locker
A brand of locking differential from ARB. It acts like an open differential until it’s actuated by compressed air. Then it completely locks, causing both tires to rotate at the same speed regardless of traction.
Approach Angle
The maximum incline angle that a vehicle can climb without encountering front bumper or undercarriage damage.
Armor-Clad
Slang for a vehicle that is equipped with heavy-duty skid plates for the undercarriage or body protection.
Axle wrap
Rotation of axle housing causing springs to bend in a way they were not designed to do. (Not a good thing)