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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1720 (FRONT SUSPENSION SYSTEM)REPAIR INSTRUCTIONSUPPER CONTROL ARM REPLACEMENT (1500)

2006 Chevrolet Suburban K2500, 6.0 U

Upper Control Arm Replacement (1500)

2006 Chevrolet Suburban K2500, 6.0 USECTION Upper Control Arm Replacement (1500)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Upper Control Arm (1500)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
1	Upper Ball Joint Nut CAUTION: Refer to Fastener Caution . Procedure Disconnect the speed sensor electrical connector. Place a suitable support under the lower control arm and load the suspension. Use the J-42188-B to separate the ball joint from the steering knuckle. See Special Tools . Remove and discard the ball joint nut. Replace with NEW only. Tighten: 50 N.m (37 lb ft) Special Tools: J-42188-B Ball Joint Separator. See Special Tools .
2	Upper Control Arm Nut (Qty: 2) Tighten: 190 N.m (140 lb ft)
3	Upper Control Arm Alignment Cam (Qty: 4)
4	Upper Control Arm Bolt (Qty: 2)
5	Upper Control Arm Procedure: Verify wheel alignment. Refer to Wheel Alignment Specifications

RENDER: 1.0x

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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.