K 2500 Truck 4WD V8-6.5L DSL Turbo VIN S (1998)
Steering Gear: Adjustments
Steering Gear Adjustments
NOTE: Before any adjustments are made on the steering gear. 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.
NOTE: Adjust the worm thrust bearing preload first, then adjust the pitman shaft over-center preload.
