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 MANUALSCHEVROLET2001EXPRESS 1/2 TON VAN V6-4.3L VIN WREPAIR AND DIAGNOSISMAINTENANCEALIGNMENTSERVICE AND REPAIRFRAME BRACKET KNOCK OUT REMOVAL
2001 Chevrolet Express 1/2 Ton Van V6-4.3L VIN W
Frame Bracket Knock Out Removal
2001 Chevrolet Express 1/2 Ton Van V6-4.3L VIN WSECTION Frame Bracket Knock Out Removal
Frame Bracket Knock Out Removal
Removal Procedure
Important: As originally installed, the upper control arm cannot be adjusted for caster or camber. If the caster and camber is out of specifications, the caster and camber can be set to the right specifications.
1. Raise the vehicle.
Important: Place safety stands under the lower control arms during the removal and the installation in order to retain the lower control arm position.
2. Remove the tire and the wheel from the vehicle.
3. Remove the upper control arm from the frame bracket.
4. Remove any wax coatings in the knockout area in order to make the stamped outline visible for removing.
5. Use a suitable cutting tool to remove the frame bracket knockout from the frame of the vehicle.
Do not distort the frame bracket when removing the knockout.
6. Repeat the same procedure for the other upper control arm frame bracket knockout.
Installation Procedure
1. Install the upper control arm into the frame brackets.
2. Install the bolts, cams and washers to the control arm. Partially tighten the nuts in order to align the vehicle.
3. Install the tire and the wheel.
4. Remove the safety stands.
5. Lower the vehicle.
6. Align the vehicle. Refer to Front Caster and Camber Adjustment or Front Toe Adjustment.
Removal Procedure
Important: As originally installed, the upper control arm cannot be adjusted for caster or camber. If the caster and camber is out of specifications, the caster and camber can be set to the right specifications.
1. Raise the vehicle.
Important: Place safety stands under the lower control arms during the removal and the installation in order to retain the lower control arm position.
2. Remove the tire and the wheel from the vehicle.
3. Remove the upper control arm from the frame bracket.
4. Remove any wax coatings in the knockout area in order to make the stamped outline visible for removing.
5. Use a suitable cutting tool to remove the frame bracket knockout from the frame of the vehicle.
Do not distort the frame bracket when removing the knockout.
6. Repeat the same procedure for the other upper control arm frame bracket knockout.
Installation Procedure
1. Install the upper control arm into the frame brackets.
2. Install the bolts, cams and washers to the control arm. Partially tighten the nuts in order to align the vehicle.
3. Install the tire and the wheel.
4. Remove the safety stands.
5. Lower the vehicle.
6. Align the vehicle. Refer to Front Caster and Camber Adjustment or Front Toe Adjustment.
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.