shawnster,

This info pertains to the rear hydraulic suspension not the 4 corner hydraulic suspensions (rare).
1) The rear springs support the vehicle when unladen
2) The sls is only utilized when weight is added to the wagon.
3) Raising the rear of the vehicle with the control linkage
will shorten the life of the accumulators.
4) If the rear is low, springs and or bump pads are needed.
5) When the control rod is properly adjusted a pin can be
inserted thru the actuator arm into the control valve.

__________________
Paul