Rear Outer Wheelhouse Replacement Sedan

Caution: Refer to Approved Equipment for Collision Repair Caution in the Preface section.

Important: The sedan outer rear wheelhouse can be replaced at factory seams. Both models have a beltline reinforcement that overlaps a portion of the wheelhouses. Remove the reinforcement on sedan models according to recommended procedures. On coupe models, templates have been developed to ensure proper wheelhouse installation on coupe models.

1. Remove all related panels and components including the back glass.
2. From inside the vehicle, pull back and protect wiring along inner wheelhouse.
3. Locate and drill out six welds securing beltline reinforcement to the quarter inner assembly. Drill through one layer ONLY.
4. Locate and drill out welds at factory seams along the perimeter of the wheelhouse flange.
5. Remove the damaged wheelhouse panel.

1. Drill 8 mm (5/16 in) holes on the service part, every 40 mm (1 ½ in).
2. Prepare all mating surfaces as necessary.
3. Apply 3M Weld-Thru Coating P/N 05916 or equivalent to all mating surfaces.
4. Position the service part and check for proper fit.

Important: Outer wheelhouse positioning may require dry-fitting of the quarter outer panel.

5. Clean and prepare welded surfaces.

Important: Do not combine paint systems. Prior to refinishing, refer to GM 4901MD-99 Refinish Manual for recommended products. Do not combine paint systems. Refer to paint manufacturer's recommendations. For further information or to order manual, please call 1-800-269-5100.

6. Apply approved anti-corrosion primer.
7. Apply sealers and sound deadener materials.
8. Refinish as necessary.
9. Install all related panels and components.

Rear Outer Wheelhouse Replacement Coupe

Caution: Refer to Approved Equipment for Collision Repair Caution in the Preface section.

Important: The sedan outer rear wheelhouse can be replaced at factory seams. Both models have a beltline reinforcement that overlaps a portion of the wheelhouses. Remove the reinforcement on sedan models according to recommended procedures. On coupe models, templates have been developed to ensure proper wheelhouse installation on coupe models.

1. Remove all related panels and components including the back glass.
2. From inside the vehicle, pull back and protect wiring along inner wheelhouse.
3. Locate and drill out six welds securing beltline reinforcement to the quarter inner assembly. Drill through one layer ONLY.
4. Locate and drill out welds at factory seams along the perimeter of the wheelhouse flange.
5. Remove the damaged wheelhouse panel.

1. Drill 8 mm (5/16 in) holes on the service part, every 40 mm (1 ½ in).
2. Prepare all mating surfaces as necessary.
3. Apply 3M Weld-Thru Coating P/N 05916 or equivalent to all mating surfaces.
4. Position the service part and check for proper fit.

Important: Outer wheelhouse positioning may require dry-fitting of the quarter outer panel.

5. Clean and prepare welded surfaces.

Important: Do not combine paint systems. Prior to refinishing, refer to GM P/N 4901MD-99 Refinish Manual for recommended products.

6. Apply approved anti-corrosion primer.
7. Apply sealers and sound deadener materials.
8. Refinish as necessary.
9. Install all related panels and components.