A first coat; primer, sealer, or surfacer applied to the substrate. Frequently used to provide corrosion protection and adhesion.

Steering condition of a turning vehicle when the vehicle attempts to turn by a lesser degree than the steered position taken by the driver. This condition is usually provided by vehicle design in order to improve the driveability of the vehicle.

Sign and accept liability (legal).

Suspension type with an upper wishbone shorter than the lower wishbone. The geometry of this layout keeps the wheel camber reasonably constant during suspension movements. Also SLA suspension.

Move in one direction only.

A clutch, used in starter motors for example, to only allow drive to pass in one direction.

A hollow nut used to secure hydraulic pipes.

Vehicle body and chassis constructed as a single unit. As distinct from a separate chassis and body construction. Also unitary body construction.

Vehicle body and chassis constructed as a single unit. As distinct from a separate chassis and body construction. Also unit-body construction.

Rotating shaft coupling that permits angular axial displacement. Some types will also operate with linear misalignment of axes.