Service manual

3-8 Front Suspension Suspension
2006 LSSV Service Manual Supplement
Description and Operation
Front Enhanced Suspension
The front suspension has two primary purposes:
• Isolate the driver from irregularities in the road
surface.
• Define the ride and handling characteristics of
the vehicle.
The front suspension absorbs the impact of the tires
traveling over irregular road surfaces and dissipates
this energy throughout the suspension system. This
process isolates the vehicle occupants from the road
surface. Ride characteristics are designed into the
suspension system and are not adjustable.
A heavy-duty shock absorber is used in conjunction
with heavy-duty hydraulic bumpers or struts to absorb
dissipative energy at the end of the road wheel arm
jounce travel. This enhanced system will dampen out
the oscillations of the torsion bar spring.
Front Hydraulic Jounce Bumper
Description
A hydraulic jounce bumper is a basic hydraulic cylinder.
The hydraulic jounce bumper aids the shock absorber
in increased energy absorption and improved
endurance. The top of the jounce bumper is mounted to
the frame and the lower is mounted to the lower control
arm. The hydraulic jounce bumper is used in
conjunction with the factory jounce bumper.