G 2500 3/4 Ton Van V8-305 5.0L VIN M SFI (1997)
Steering Gear: Adjustments
Steering Gear Adjustments
Important: Before any adjustments are made on the steering gear, refer to "Steering, Suspension, Tires and Wheels Diagnosis" for reviewing the
possible steering system problems. Any steering gear adjustment is made only as a correction and not as a periodic adjustment.
For proper adjustment, remove the steering gear from the vehicle. Drain the power steering fluid from the gear. Mount the gear in a vise and make the
following adjustments.
The steering gear requires two adjustments:
-
The worm thrust bearing preload.
-
The pitman shaft over-center preload adjustment.
The worm thrust bearing preload is controlled by the amount of compression force exerted by the adjuster plug on the conical worm bearing thrust races.
The pitman shaft over-center preload is controlled by the pitman shaft adjuster screw, which determines the clearance between the rack piston and the
pitman shaft sector teeth.
Important: Adjust the worm thrust bearing preload first, then adjust the pitman shaft over-center preload.
