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SLA

Acronym for Shift Lever Sensor Module (Chrysler).

Slalom

A contest of speed and maneuverability through a tight course marked off with pylons.

Slam The Door

1. Beating another vehicle in competition. 2. Preventing a competitive vehicle from passing.

Slant Six

A six-cylinder engine design offered on some Chrysler car lines in the 1960's and 1970's.

Slave Cylinder

[1] A device in the hydraulic clutch system which in activated by hydraulic force disengaging the clutch [2] In the brake system it is a device for transferring hydraulic energy from the master cylinder to the brake pads or shoes.

Slave Valve

An air-pressure operated device that helps to protect gears and components in the transmission's auxiliary section by permitting range shifts to occur only when the transmission's main gearbox is in neutral.

Sled Runner

The taper of the skirt of a piston to compensate for heat expansion.

Sleeper

A vehicle that looks ordinary but is actually a high performer.

Sleeve

A term used for cylinder sleeve.

Sleeve Bearing

A plain bearing.

Slick

A smooth, treadless racing tire.

Slide Hammer

A metal rod with a tool at one end, and a heavy weight that slides on the rod to pull, or push, the tool.

Slide Travel

The distance that a sliding fifth wheel is designed to move.

Slider Clutch

A special clutch used in drag race cars that slips to allow the engine to rev up before engaging.

Sliding Caliper

A disc-brake caliper that has a piston(s) on one side of the disc only that moves sideways on machined "ways" or keys to press the pad on the other side against the disc.

Sliding Fifth Wheel

A specialized fifth wheel design that incorporates provisions to readily relocate the kingpin center forward and rearward, which affects the weight distribution on the tractor axles and/or overall length of the tractor and trailer.

Sling

A loop of rope, cable, or chain used in hoisting heavy material.

Slinger

A metal disc attached to the crankshaft to keep engine oil away from the front seal.

Slip Angle

The difference in the path the wheels follow during a turn compared to the actual direction they are pointing, caused by centrifugal force at higher speeds.

Slip Joint

A term used for lip yoke.