Front Steering Knuckle: Description and Operation

DESCRIPTION





The steering knuckle is a single aluminum casting with legs machined for attachment of the strut assembly, steering linkage, disc brake caliper adapter, lower control arm ball joint and steering linkage. The hub and bearing assembly is mounted in the center of the steering knuckle using 4 bolts. The driveshaft's constant velocity (C/V) stub axle is splined through the center of the hub and bearing and is held in place using a nut, nut lock and cotter pin.

Service replacement of the front hub and bearing assembly can be done with the steering knuckle remaining on the vehicle.

OPERATION
The steering knuckle pivots with the strut assembly between the lower ball joint and the pivot bearing in the strut assembly. The steering gear outer tie rod end connects to the trailing end of each knuckle, allowing the vehicle to be steered.

The center of the knuckle supports the hub and bearing and axle shaft.