Strut Assembly (Front)

DESCRIPTION






A Macpherson type strut assembly is used in place of a front suspension upper control arm and upper ball joint. The bottom of the strut mounts directly to the steering knuckle using 2 attaching bolts and nuts going through the strut clevis bracket and steering knuckle. The top of the strut mounts directly to the strut tower of the vehicle using the threaded studs on the strut assemblies upper mount.
The strut assembly includes the following components:
- Upper mount
- Pivot bearing
- Upper spring seat (and isolator)
- Dust shield
- Jounce bumper
- Coil spring
- Lower spring isolator
- Strut

Each component is serviced by removing the strut assembly from the vehicle and disassembling it.

Coil springs are rated separately for each corner or side of the vehicle depending on optional equipment and type of vehicle service. If the coil springs require replacement, be sure that the springs needing replacement are replaced with springs meeting the correct load rating and spring rate for the vehicle and its specific options.

OPERATION
The strut assembly cushions the ride of the vehicle, controlling vibration, along with jounce and rebound of the suspension.

The coil spring controls ride quality and maintains proper ride height.

The spring isolators isolate the coil spring at the top and bottom from coming into metal-to-metal contact with the upper seat and strut.

The jounce bumper limits suspension travel and metal-to-metal contact under full jounce condition.

The strut dampens jounce and rebound motions of the coil spring and suspension.

During steering maneuvers, the strut assembly (through a pivot bearing in the upper strut mount) and steering knuckle (through the lower ball joint) turn as an assembly.