A suspension member that has a single joint at each end. Live Axle A rigid axle incorporating a differential and axle shafts to power the two wheels it is supporting.

An axle that transmits power either by separate half shafts or by side chains, as opposed to a dead axle.

Helical springs that maintain normal vehicle height.

The juncture at which a tire starts to skid during braking. A tire's maximum braking force is developed when it is on the verge of lockup, so a car's shortest stopping distances are produced when its front and rear tires approach lockup simultaneously. This is very hard to achieve under varying conditions of load and traction, so one end typically locks up before the other. Front-wheel lockup is inherently more stable than rear-wheel lockup.

A automatic transmission with a mechanical clutch that bypasses the fluid coupling of the torque converter. A lockup converter is more efficient because there is no wasted energy in the transmission fluid of the torque converter. Most automatic transmissions have a lockup converter for the highest ratio (usually 4th or 5th gear).

A differential whose two outputs can be locked together, eliminating any differential action but maximizing traction under slippery conditions.

A torque converter that contains a special clutch that forms a solid connection between the engine output shaft and the transmission input shaft when a certain, pre-set speed is attained. This reduces transmission friction losses and increases efficiency.

A slang term for oversteer.

A slatted air intake or air outlet. Slats used to capture and control the air flow.

This designation applies to vehicles that have passed emission standards significantly more stringent than the EPA minimum. Several manufacturers such as Honda market LEV compliant gasoline powered cars.

When the brake pedal nearly touches the floor before the brakes begin to function. Bad news.

Lug nuts attach a car's wheel to its hub.

A well-appointed, well-equipped, well-designed and constructed auto varying in size from a compact to a large sedan.