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 343 (REAR SUSPENSION)REPAIR INSTRUCTIONSREAR AXLE LOWER CONTROL ARM REPLACEMENTINSTALLATION
1999 GMC Forward Control 5.7 R, Automatic
Rear Axle Lower Control Arm Replacement: Installation
1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Position the lower control arm to the support and hand tighten the bolt and nut.
- Install the spring and jounce bumper to the lower control arm; then hand tighten the jounce bumper nut.NOTE:
- Spray silicon lubricant on the insulators to aid in installation.
- Ensure the spring is properly seated.
- Position the spring with the rubber insulators into the vehicle.
- Use a screw type jack stand to compress the spring.NOTE: Refer to FASTENER NOTICE
- Install the knuckle to the lower control arm. Tighten the lower control arm to knuckle bolt to 110 N.m (81 lb ft).
- Tighten the lower control arm to support nut and bolt. Tighten the bolt to 110 N.m (81 lb ft).
- Install the shock to the lower control arm. Tighten the lower shock bolt to 110 N.m (81 lb ft).
- Remove the jack stand.
- Tighten the jounce bumper to the lower control arm nut. Tighten the nut to 63 N.m (46 lb ft).
- Install the stabilizer link to the lower control arm. Tighten the nut to 15 N.m (11 lb ft).
- Push the trailing arm upward to align the front bracket to the body bolt.
- Use a drift to aid in bracket alignment and install the remaining bolts. Tighten the bracket to body bolts to 110 N.m (81 lb ft).
- Install the tire and wheel.
- Lower the vehicle.
- Check the rear alignment.
- For 2003 models, refer to SPECIFICATIONS .
- For 2004 models, refer to SPECIFICATIONS .
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.