Rear Suspension System: General Description

These vehicles use either a coil spring suspension or an air suspension configuration that utilizes two air springs. On vehicles equipped with the air springs, two separate height sensors control the air springs, one for the left spring and one for the right spring.

A separate air compressor is used to inflate the air springs and maintain proper ride height.

Two direct double-acting shock absorbers provide ride control. The shock absorbers are angle-mounted between the frame. The shock absorbers are attached with brackets. The brackets are attached to the anchor plate.

The rear spring steel stabilizing bar helps minimize body roll and sway during cornering. The rear stabilizer shaft is connected to the rear axle and the frame.

The rear suspension system on this vehicle consists of the following components:

• The rear axle.
• Two coil springs or two air springs.
• Two height sensors, air suspension only.
• Air compressor, air suspension only.
• Air supply lines, air suspension only.
• Two shock absorbers.
• The rear axle tie rod.
• Two upper control arms.
• Two lower control arms.