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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 573 (PROPELLER SHAFT)REPAIR INSTRUCTIONSPROPELLER 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 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Location For Reference Mark At Torque Tube Flange

Courtesy of GENERAL MOTORS CORP.

Install the rear of the propeller shaft to the torque tube flange.
Align the reference marks on the propeller shaft and the torque tube flange.
IMPORTANT: Thoroughly clean and apply threadlocker GM P/N United States 12345493 P/N Canada 10953488 or equivalent to the bolt threads prior to assembly.
Hand install the propeller shaft-to-torque tube bolts in order to maintain the proper propeller shaft to torque tube relationship. Ensure that the crescent washer is in place on each pair of bolts.

Fig 2: Location For Reference Mark At Transfer Case Flange

Courtesy of GENERAL MOTORS CORP.

Push the propeller shaft toward the rear of the vehicle and install the propeller shaft to the transfer case flange.
Align the reference marks on the propeller shaft and the transfer case flange.

NOTE: Refer to Fastener Notice in Cautions and Notices.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.