Caution: If penetrating oil gets on the vertical surfaces between the wheel and the rotor or drum it could cause the wheel to work loose as the vehicle is driven, resulting in loss of control and an injury accident.

Notice: Never use heat to loosen a tight wheel. It can shorten the life of the wheel, studs, or hub and bearing assemblies. Wheel nuts must be tightened in sequence and to the specified torque to avoid bending the wheel or rotor.

Removing the wheels can be difficult, due to foreign material or a tight fit between the wheel center hole and the hub or the rotor. Excessive force, such as hammering on the wheel or the tire, can cause damage. Slightly tapping the tire side wall with a rubber mallet is acceptable. Wheel removal should be done in the following way:

1. Tighten all of the wheel nuts on the affected wheel. Do not torque the wheel nuts.
2. Loosen each wheel nut 2 turns.
3. Apply quick, hard jabs to the brake pedal in order to loosen the wheel. If this does not loosen the wheel, rock the vehicle from side to side, using the body weight of 1 or more persons.
4. Repeat this procedure if the wheel is still tight.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the wheel nuts. Mark the location of the tire and wheel assembly to the hub assembly.
3. Remove the tire and the wheel assembly.
4. Clean the wheel nuts, the bolts, and the wheel and the rotor mounting surfaces.

Tools Required

J 39544-KIT Wheel Nut Torque Limiter

Caution: Before installing the wheels, remove any buildup of corrosion on the wheel mounting surface and brake drum or disc mounting surface by scraping and wire brushing. Installing wheels with poor metal-to-metal contact at the mounting surfaces can cause wheel nuts to loosen. This can cause a wheel to come off when the vehicle is moving, causing loss of control and possibly personal injury.

Caution: If you are replacing the wheel(s), the wheel stud(s), the wheel nut(s) or the wheel bolt(s), install only new GM original equipment parts. Installation of used parts or non-GM original equipment parts may cause the wheel to loosen, loss of tire air pressure, poor vehicle handling and loss of vehicle control resulting in personal injury.

Notice: The use of non-GM original equipment wheels may cause:

•	Damage to the wheel bearing, the wheel fasteners and the wheel

•	Tire damage caused by the modified clearance to the adjacent vehicle components

•	Adverse vehicle steering stability caused by the modified scrub radius

•	Damage to the vehicle caused by the modified ground clearance

•	Speedometer and odometer inaccuracy

1. Install the tire and the wheel assembly. Align the locating mark of the tire and the wheel to the hub assembly.




Notice: A torque wrench or J 39544 must be used to ensure that wheel nuts are tightened to specification. Never use lubricants or penetrating fluids on wheel stud, nuts, or mounting surfaces, as this can raise the actual torque on the nut without a corresponding torque reading on the torque wrench. Wheel nuts, studs, and mounting surfaces must be clean and dry. Failure to follow these instructions could result in wheel, nut, and/or stud damage.

Notice: 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.

2. Install the wheel nuts. Tighten the wheel nuts evenly and alternately in order to avoid excessive runout.

Tighten
Tighten the nuts alternately to 125 N·m (80 lb ft).

3. Lower the vehicle.