Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 730 (STEERING WHEEL AND STEERING COLUMN)REPAIR INSTRUCTIONSINTERMEDIATE STEERING SHAFT REPLACEMENTINSTALLATION PROCEDURE

1999 GMC Forward Control 5.7 R, Automatic

Installation Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Lower Coupling Shield, Lower Coupling & Retaining Bolt

Courtesy of GENERAL MOTORS CORP.

Place the intermediate shaft into vehicle.
Slide the upper coupling into the steering column shaft.
Connect the lower coupling onto the steering gear.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the lower coupling retaining bolt into the lower coupling.
Tighten: Tighten the lower coupling retaining bolt to 34 N.m (25 lb ft).
Remove J 42640 from the steering column. See Special Tools and Equipment .

Fig 2: Steering Column, Upper Coupling & Bolt

Courtesy of GENERAL MOTORS CORP.

Unlock the steering column.
Turn the steering wheel far enough to the left to gain access to the upper coupling bolt hole.
Install the upper coupling bolt into the upper coupling.
Tighten: Tighten the upper coupling bolt to 48 N.m (35 lb ft).
Turn the steering wheel back to the right until the wheels are in a straight ahead position, then lock the steering column.
Install the lower steering coupling shield.
Tighten: Tighten the lower steering coupling shield screw to 3.5 N.m (31 lb in).

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.