This information provides repair recommendations and general guidelines for steel classified as High Strength Low Alloy Steel, also known as HSLA. This type of steel normally has a tensile strength range from 300-700 MPa.
General Motors recommends the following when repairing or replacing this type of steel during collision repair.
Recommended Repairs
Tyre and Wheel Removal and Installation
Removal Procedure
Raise and suitably support the vehicle. Refer to Lifting and Jacking the
Vehicle.
Remove the wheel center cap.
Mark the relationship of the wheel (2) to the hub.
Remove the wheel nuts (1).
Warning: If penetrating oil gets on the vertical surfaces between the ...
Installation Procedure
Drill 8 mm (5/16 in) for plug welding along the edges of the body side
outer lower panel as noted from the original panel.
Note: If the location of the original plug weld holes can not be
determined, space the plug weld holes every 40 mm (1½ in).
Clean and prepare the attac ...
Radiator Grille Reinforcement Support Replacement
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement.
Radiator Grille Reinforcement Support Bolt (Qty: 4)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
10 N·m (89 lb in).
Radiator Grille Reinforcement Support Retainer ...