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 438 (BUMPER SYSTEM)REPAIR INSTRUCTIONSIMPACT BAR REPLACEMENT - REAR BUMPERINSTALLATION 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 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
- Install the rear bumper step pad to the bumper. Refer to Step Pad Replacement - Rear Bumper .
- Install the rear bumper step pad extensions to the bumper. Refer to Step Pad Extension Replacement - Rear Bumper .
- Install the rear bumper braces to the bumper. Refer to Bracket Replacement - Rear Bumper .
- Install the bumper to the vehicle.CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
- Install the inner bumper impact bar brace retaining nuts (1) to the frame (2).
Tighten
Tighten the inner bumper impact bar brace retaining nuts to 50 N.m (37 lb ft).
- Install the outer bumper braces to the frame (2).
- Install the outer bumper impact bar brace retaining nuts (1) to the frame (2).
Tighten
Tighten the outer bumper impact bar brace retaining nuts to 50 N.m (37 lb ft).
- Remove the safety stands. Lower the vehicle.
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.
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.