Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two. Suspension systems serve a dual purpose — contributing to the vehicle's road holding/handling and braking for good active safety and driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations, etc. These goals are generally at odds, so the tuning of suspensions involves finding the right compromise. It is important for the suspension to keep the road wheel in contact with the road surface as much as possible, because all the road or ground forces acting on the vehicle do so through the contact patches of the tires. The suspension also protects the vehicle itself and any cargo or luggage from damage and wear.

Rack End connects Tie Rod End. The purpose of the rack end is to transfer the force, which is transformed from the circular motion of the pinion into the horizontal linear motion of the rack, to the left and right wheels. High Link's rack ends are manufactured follow by OE specifications, and where required include a lock nut and boot locking washer.

Stabilizer link acts as a component of automotive suspensions, connecting several relevant parts that helps reduce the body roll of a vehicle while passing over pot holes and other road imperfections. It connects left and right wheels together through short lever arms linked by a torsion spring. A stabilizer link increases the suspension's roll stiffness and its resistance to roll in turns.

Ball joints are spherical bearings that connect the control arms to the steering knuckles. They are used on virtually every automobile made and work similar to the ball-and-socket of human. On modern vehicles, ball joints are the pivot between the wheels and the suspension of an automobile. They are today almost universally used in the front suspension, having replaced the kingpin arrangement. It can also be found in the rear suspension of a few higher performance vehicles. Ball joints play a critical role in the safe operation of an automobile's steering and suspension.

Tie Rod End is part of the steering mechanism in a vehicle. A tie rod end is a slender structural rod that is used as a tie and capable of carrying tensile loads. A tie rod end consists of an inner and an outer ends, it transmits force from the steering center link or the rack gear to the steering knuckle. This will cause the wheel to turn. The outer tie rod end connects with an adjusting sleeve, which allows the length of the tie rod to be adjustable. This adjustment is used to set a vehicle’s alignment angle.