G 2500 3/4 Ton Van V8-305 5.0L VIN M SFI (1997)
7. Place a torque wrench on the stub shaft (40) with the handle in the vertical position. Rotate the stub shaft (40) 45 degrees each side of the center.
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Stub shaft must rotate smoothly and must not stick or bind.
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Record the worm bearing preload measured on or near the center.
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Recorded bearing preload to be 0.7-1.7 Nm (6- 15 inch lbs.), with worm and ball nut installed. If the torque is outside this range, the gear
assembly should be readjusted or repaired as required.
NOTICE: Always use the correct fastener In the proper location. When you replace a fastener, use ONLY the exact part number for that
application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the
fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases,
or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque
and joint clamping force, and may damage the fastener. When you Install fasteners, use the correct tightening sequence and specifications.
Following these instructions can help you avoid damage to parts and systems.
Adjust
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Over-center torque by turning the pitman shaft adjuster screw clockwise until the correct preload torque is obtained.
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Add 0.7-1.1 Nm (6-10 inch lbs.) torque to the previously measured worm bearing preload torque.
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Tighten
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Adjuster lock nut (8) to 49 Nm (36 ft. lbs.).
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Prevent adjuster screw from turning while tightening adjuster lock nut (8).
8. Install steering gear. Refer to "Power Steering Gear Replacement."
