Forged Steering Knuckles, Ball Joints & Camber Bushings
Forged steel wheel spindles that pivot on upper and lower ball joints with eccentric bushings for caster and camber alignment.
Role in the System
What This Assembly Is
At the outer yoke of each forged Twin-I-Beam axle sits the forged steel steering knuckle and wheel spindle, pivoting on press-fit upper and lower spherical ball joints and clamped into an eccentric upper caster/camber alignment bushing.
Mechanics & Physics
How the Subcomponents Work Together
Dual-Axis Spherical Pivoting: The upper and lower ball joints form the kingpin axis around which the front wheels steer left and right while simultaneously accommodating suspension travel.
How Eccentric Camber Bushings Align a Twin-I-Beam Truck: Because a forged I-beam cannot be bent with shims like a control arm, the upper ball joint stud clamps into a split steel sleeve whose inner hole is offset ("eccentric") from its outer diameter. Rotating that sleeve in the axle boss tilts the top of the steering knuckle in or out (camber) and fore or aft (caster).
Other Assemblies in This System
Tilt Steering Column, Airbag Wheel, Ignition Lock & Shaft
Driver steering interface with 1994 SRS airbag module, spiral clockspring, tilt joint, and collapsible rag-joint shaft.
Ford C-II Slipper-Vane Power Steering Pump & Valve
Elliptical cam-ring hydraulic pump with ten spring-loaded slipper vanes that generates up to 1,100 psi of steering assist.
Recirculating-Ball Steering Gear, Pitman Arm & Linkage
Rotary torsion-bar hydraulic valve, recirculating-ball worm-and-sector gearbox, and Ford’s cross-frame Haltenberger linkage.