Front Suspension Description and Operation

The front suspension allows each wheel to compensate for changes in the road surface without affecting the opposite wheel. Each wheel independently connects to the frame with a steering knuckle, ball joint assemblies, and upper and lower control arms. Two tie rods connect to the steering arms on the knuckles and to a steering gear. Both 2WD and 4WD models have a front suspension that consists of the following components: Control arms Stabilizer shaft Shock/Coil spring modules The upper part of each Shock/Coil spring module attaches to the frame by three nuts. The spring is held in place to the shock with a top mount and a rubber spring seat. Two bolts secure the lower part of the shock module to the lower control arm. A spring steel stabilizer shaft controls the side roll of the front suspension. This shaft is mounted in rubber insulators that are held by clamps to the underside of the frame rails. The ends of the stabilizer shaft connect to the lower control arms with link assemblies. The upper ball joint assembly is integrated into the upper control arm. The assembly attaches to the steering knuckle with a prevailing torque nut. The lower ball joint assembly is integrated into the control arm. The assembly attaches to the steering knuckle with a prevailing torque nut. The upper and the lower control arms have pressed-in bushings. The bolts pass through the bushings and join the arms to the frame. Ball joint assemblies have rubber grease seals. These seals prevent the entry of moisture and dirt. This prevents damage to the bearing surfaces. Both 2WD and 4WD models have sealed front wheel bearings. These bearings are pre-adjusted and need no lubrication.