Tapered leaf springs have two leaves of parabolic taper form. Tapered leaf springs use a front eye and rear compression shackle.

Multileaf springs use a front eye and rear slider. The slider stop bolt must be tightened to specifications (1). All springs are a two stage-design. All spring and shackle eyes are rubber bushed and non-lubricated.

Spring eyes are fully reamed in order to accept the rubber bushings. The auxiliary spring is a single leaf parabolic taper form and the frame brackets are shaped cams to produce a variable rate.

A polyurethane spring aid and rubber bump stop are attached to the frame above the spring center.

Dampening is provided by twin-tube shock absorbers mounted vertically behind the axle. Top and bottom attachments are pin type with rubber insulators. The upper end is attached to a frame crossmember. The lower end is attached to a bracket that mounts between the spring and the axle housing.

Shocks are required with the tapered leaf springs. Shocks are optional with the multileaf springs.

The stabilizer shaft assembly consists of a shaft attached to the frame by two links. The ends are attached to the axle by castings mounted between the spring assembly and the axle housing.