Installation Procedure

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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.

NOTE: 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.

Fig 1: View Of Tire/Wheel Assembly, Hub Assembly & Wheel Nuts

Courtesy of GENERAL MOTORS CORP.

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

NOTE: Refer to Fastener Notice in Cautions and Notices.

Fig 2: Wheel Nut Torque Sequence

Courtesy of GENERAL MOTORS CORP.

Install the wheel nuts hand tight.
Tighten the nuts evenly and alternately to avoid excessive runout.

Tighten: Tighten the wheel nuts to 140 N.m (103 lb ft) using J 39544-KIT . See Special Tools and Equipment .
Install the wheel hub cap, if equipped.
Lower the vehicle.