Page 37 - Jeep Jamboree Ultimate Guide To Safe Common Sense Off-Roading
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GLOSSARY
2WD All-Wheel Drive (AWD)
In a 2WD vehicle, two wheels receive all the AWD vehicles utilize a center differential to deliver
torque. Operating in 2WD provides significantly power to all four wheels. But most AWD vehicles
better highway fuel economy. don’t have a transfer case that splits and locks the
power 50/50 front to back, so they will operate like
4WD High front-wheel drive vehicles most of the time – only
4WD High gives you extra traction on dirt roads delivering torque to the rear wheels as needed.
and easier trails that require steady momentum.
It reduces the likelihood of slipping and spinning Approach Angle
your wheels on surfaces like snowy roads and The maximum angle at which a vehicle can enter
muddy dirt. an upward slope without the front of the vehicle
touching the ground.
4WD Low
4WD Low provides maximum traction and power Ascent
to negotiate difficult terrain when slower speeds Driving up to the summit of a mountain or hill.
and greater torque are required. It can also be
helpful when towing. Automatic Transmission
Shifts between gears internally, freeing the driver
4x4 from having to shift gears manually. An automatic
A vehicle that has four wheels and four-wheel transmission allows you to efficiently reach high
drive. speeds and is typically used for highway driving.
Acceleration Axle
The capacity to gain speed within a short A central shaft for a rotating wheel that may be
timeframe. fixed to the wheels and rotating with them or fixed
to the vehicle with the wheels rotating around the
After-Market Modifications axle.
Changes made to a vehicle beyond factory
specifications. After-market parts may or may Axle Ratio
not be manufactured by the original equipment A comparison of the number of gear teeth on the
manufacturer. rear axle and the pinion gear on the driveshaft.
Aired/Airing Down Biting Edges
Lowering the tire pressure to offer a smoother ride Portions of the tire tread that is designed for
while driving off-highway. It also increases your increased wet and snow traction.
tire’s footprint, resulting in better traction over
rocks and loose terrain. Bogged Vehicle
A vehicle that has become stuck in water, mud or
All-Terrain Tires sand.
All-terrain tires are designed to provide
considerable traction over a wide range of terrains. Bottle Jacks
Their less aggressive tread design provides a much Also called hydraulic jacks, bottle jacks are very
smoother and quieter highway ride than a mud- compact and can lift immense amounts of weight.
terrain tire. They have less reach than traditional crank jacks.
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