Quarter Panel

Complete removal and replacement of the rear quarter panel on a 2005 Dodge Viper, including disassembly of interior trim, exterior lamps, rear bumper cover, and structural panel separation with adhesive bonding and fastener reinstallation.

Warnings

Tools required

Parts

• Quarter panel assembly × 1 — Use OEM specification for correct body style
• Panel bonding adhesive (3M 08115 or equivalent) × 2 — 3M 08115 or approved body panel adhesive
• Spot weld kit (plug weld washers) × 1 — Use OEM or approved body repair kit
• Interior trunk trim clips × 1 — Replace as needed during removal
• Wheel opening molding clips × 1 — Replace damaged clips during reassembly
• Weather stripping (quarter window to body) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Disconnect negative battery cable and isolate it away from battery terminal
3. Remove rear wheel on affected side and support vehicle on jack stands at manufacturer-specified lift points
4. Cover adjacent body panels and glass with protective material to prevent damage during cutting and grinding operations
5. Take detailed photographs and measurements of panel gaps, alignment marks, and mounting points before disassembly for reference during installation
6. Verify replacement panel matches original in all mounting hole locations and contour before beginning removal

Procedure

1. 1

   Remove interior trunk trim panels
   Open trunk and identify interior side trim panels covering the inner quarter panel structure. Locate and remove trim panel fasteners securing the trunk side liner. The Viper trunk uses a combination of plastic push clips and exposed fasteners accessible from inside the trunk. Carefully pry trim panels away from body using trim removal tools, working around edges to release clips without breaking them. Remove trunk liner sections to expose the inner quarter panel, wheelhouse, and structural mounting points. Note the routing of any wiring harnesses attached to the trim before complete removal.
2. 2

   Disconnect electrical components in quarter panel area
   Identify and disconnect electrical connectors for tail lamp assembly, side marker lamp, and any rear sensors or wiring routed through the quarter panel area. For the tail lamp, remove the fasteners securing the lamp housing from inside the trunk area (typically accessible after trim removal). Carefully pull lamp assembly outward to access connector behind housing. Disconnect connector and remove lamp assembly completely. Tag all connectors for correct reinstallation.
3. 3

   Remove rear bumper cover and fascia attachment
   Locate fasteners securing the rear bumper cover to the quarter panel and underlying structure. On the Viper, these are typically found along the lower edge of the quarter panel where it meets the bumper, inside the wheel opening, and at the upper edge near the trunk opening. Remove all bumper cover attachment fasteners in the quarter panel region. If replacing only one quarter panel, the bumper cover may remain partially attached to the opposite side, but must be released from the damaged panel completely. Remove any bumper brackets or reinforcement pieces attached to the quarter panel itself. Note: Reinstall rear wheel and torque lug nuts to the OEM 2005 Viper specification (verify against factory service manual — approximately 100 ft-lbs / 135 Nm).
4. 4

   Remove wheel opening moldings and exterior trim
   Remove the rear wheel opening molding or flare trim if equipped. These are typically secured with a combination of clips and concealed fasteners accessed from the wheel well. Remove any lower body side moldings or accent strips that overlap or attach to the quarter panel. For the Viper, check for side sill extensions or rocker panel trim that extends rearward over the quarter panel lower edge. Remove all trim pieces completely and store safely to prevent damage.
5. 5

   Remove quarter window assembly if present
   The Viper may have a small fixed quarter window or vent window integrated into the rear quarter area. From inside the vehicle, remove interior trim surrounding the window. Identify fasteners or adhesive securing the window glass and frame to the quarter panel. If bolted, remove fasteners from inside. If bonded, use a cold knife or cut-out tool to carefully separate the window assembly from the body opening. Remove window assembly completely and protect glass. Remove any associated weather stripping or sealing material.
6. 6

   Document and mark spot weld and attachment locations
   With interior and exterior trim removed, the quarter panel attachment points are now visible. Using a marker or paint pen, clearly mark every spot weld location along the quarter panel perimeter. Common attachment areas include: the sail panel/C-pillar area, the rocker panel flange, the rear body panel junction, the wheelhouse inner flange, the trunk floor flange, and the rear window opening if applicable. Use a spot weld locator tool or visual inspection to identify all factory welds. Mark the center of each weld with a punch mark for drilling reference. Take measurements from known reference points (door opening, wheelhouse edges) to quarter panel edges for alignment during installation.
7. 7

   Drill out spot welds along quarter panel perimeter
   The 2005 Viper quarter panel is a composite (fiberglass/SMC) component with NO spot welds. Do not attempt to drill spot welds. Instead, identify the bonded seams and mechanical fasteners securing the composite panel to the space frame and adjacent panels. Consult OEM body repair documentation for the specific bond-line locations and fastener positions before separation.lange, wheelhouse flange, C-pillar area, and rear panel junction. The Viper quarter panel typically has spot welds spaced every 30-40mm along flanges. After drilling all spot welds, check for any remaining attachments by attempting to gently pry panel edges. Note: Not applicable — the Viper composite quarter panel has no spot welds. Verify bond-line lengths and mechanical fastener count/locations against OEM body repair documentation instead.
8. 8

   Cut panel bonding adhesive and remaining attachment points
   In addition to spot welds, modern vehicle construction often uses structural panel bonding adhesive along flanges. Using a thin cut-off wheel on a die grinder or a panel separation tool, carefully cut along the flanges between the quarter panel and inner structure to separate any adhesive bonds. Work slowly to avoid cutting into the inner structure that will remain. Focus on areas where the panel remains attached after spot weld removal. In areas where the quarter panel wraps around edges (such as the rear body panel), use the die grinder to make relief cuts to separate the panel without distorting the remaining structure.
9. 9

   Remove damaged quarter panel from vehicle
   With all spot welds drilled and adhesive bonds cut, carefully pry the quarter panel away from the vehicle structure. Start at the rear edge and work forward, using a flat pry bar to separate the panel from inner structures. The quarter panel should lift away as a complete piece. If resistance is encountered, stop and inspect for missed spot welds or attachment points. Once panel is freed, remove it completely from vehicle. Inspect all remaining flanges on the vehicle for damage, distortion, or remnants of the old panel that need to be cleaned up.
10. 10

    Clean and prepare mounting flanges
    With the old quarter panel removed, use a wire brush, grinding disc, or flap wheel to clean all mounting flanges where the new panel will attach. Remove all old weld remnants, adhesive residue, rust, and paint from the mating surfaces. The flanges should be bare metal for proper welding and adhesive bonding. Inspect the rocker panel flange, wheelhouse flange, C-pillar area, and rear body panel flanges for damage. Straighten any bent or distorted flanges using a panel dolly and hammer. Use a straightedge to verify that all flanges are in the correct plane. If structural damage exists to inner panels, repair must be completed before new quarter panel installation.
11. 11

    Test fit new quarter panel and verify alignment
    Position the new quarter panel onto the vehicle and secure it temporarily with Cleco fasteners or locking pliers at key mounting points. Verify that all flanges align correctly with their mating surfaces on the vehicle structure. Check panel gaps at the door opening, trunk opening, and rear bumper mounting area. Use a tape measure to compare gaps side-to-side with the opposite (undamaged) quarter panel. Verify that mounting holes for tail lamp, bumper brackets, and trim align correctly. The panel should sit flush with adjacent body panels without forcing. If alignment is incorrect, investigate for damaged inner structure or incorrect replacement panel. Make alignment marks on panel and vehicle structure to maintain position during final installation.
12. 12

    Apply structural panel bonding adhesive to flanges
    Remove the test-fitted quarter panel. Using a panel bonding adhesive gun, apply a continuous bead of structural adhesive (such as 3M 08115 or OEM-approved equivalent) to all mating flanges on the vehicle structure. Apply adhesive to the rocker panel flange, wheelhouse flange, rear body panel flange, and C-pillar area according to adhesive manufacturer specifications for bead size (typically 6-8mm diameter). Work quickly as most structural adhesives have a working time of 10-15 minutes before initial set. Do not apply adhesive to areas that will be plug welded, as heat will compromise adhesive performance.
13. 13

    Install and secure new quarter panel with temporary fasteners
    Carefully position the new quarter panel onto the adhesive-coated flanges, aligning with the marks made during test fitting. Press firmly to compress adhesive and seat the panel fully against all flanges. Immediately install Cleco temporary fasteners through the original spot weld holes to clamp the panel in position. Space Clecos approximately every 75-100mm around the panel perimeter. Verify alignment at all body gaps before adhesive begins to set. Use body jack stands or panel holders to support the quarter panel in correct position. Check door gap, trunk gap, and overall contour against measurements taken before removal and against the opposite side of vehicle. Adjust position as needed within the adhesive working time. Once positioned correctly, allow adhesive to cure per manufacturer recommendations (typically 30 minutes minimum) before welding.
14. 14

    Plug weld quarter panel to vehicle structure
    The Viper composite quarter panel CANNOT be welded. Secure the new panel using structural panel adhesive (per OEM spec) along the bond lines and reinstall all original mechanical fasteners to the space frame. Follow the adhesive manufacturer's clamping and cure-time requirements; do not apply any welding heat to the composite panel or adjacent components.ate locations around panel rather than welding continuously). Space plug welds according to OEM specifications, typically every 30-40mm along structural flanges. In high-stress areas such as the rocker panel junction and C-pillar, maintain original weld spacing. Allow welds to cool between sections to prevent panel warpage. Remove Cleco fasteners as welding progresses, replacing them temporarily if needed to maintain alignment.
15. 15

    Grind welds and finish panel surfaces
    After the panel adhesive has fully cured, dress the bonded seams and panel junctions using appropriate composite finishing techniques (sanding, glazing/body filler compatible with SMC/fiberglass). Feather-sand edges at panel junctions to create a smooth transition. Do not grind (no welds are present). Clean all welded areas with wax and grease remover. Apply a corrosion protection coating (weld-through primer or epoxy primer) to all bare metal areas, especially on the backside of flanges accessible from inside. Apply body filler as needed to achieve final contour, following manufacturer instructions for mixing and application. Block sand filled areas to match original panel contour.
16. 16

    Reinstall quarter window assembly if applicable
    If the vehicle is equipped with a quarter window, prepare the opening in the new quarter panel with appropriate primer or adhesive. Install new weather stripping or sealing material around the window opening. Position the quarter window assembly into the opening and secure using the original method (bolts from inside or adhesive bonding). If using adhesive, apply urethane window adhesive per manufacturer instructions and allow proper cure time. Ensure window is flush with body surface and sealed properly to prevent water intrusion.
17. 17

    Reinstall exterior trim and wheel opening moldings
    Reinstall the wheel opening moldings or flare trim, using new clips where originals were damaged during removal. Ensure moldings seat fully against the quarter panel and align correctly with body contours. Reinstall any lower body side moldings or accent strips that were removed, verifying alignment with adjacent panels and opposite side of vehicle. Replace any damaged trim clips with new OEM or equivalent parts.
18. 18

    Reinstall rear bumper cover and fascia components
    Position rear bumper cover and align with quarter panel mounting points. Install any brackets or reinforcement pieces that attach to the quarter panel first, torquing fasteners to specification. Then install bumper cover fasteners along the quarter panel edge, in the wheel opening area, and at the upper trunk area. Verify bumper cover alignment and gaps before final tightening. Check that bumper cover contour matches the opposite side and sits flush with the quarter panel surface.
19. 19

    Reinstall tail lamp assembly and electrical connections
    Route wiring harnesses through the quarter panel area as originally configured. Reconnect tail lamp assembly electrical connector. Position tail lamp housing into the quarter panel opening and secure with original fasteners, torquing to specification if torque values are provided. Verify lamp seals properly against the body to prevent water intrusion. Reconnect any side marker lamps or sensors in the quarter panel area.
20. 20

    Reinstall interior trunk trim panels
    Route any wiring harnesses along the inner quarter panel as originally configured, securing with clips or ties as needed. Position trunk side trim panels over the inner quarter panel structure, aligning mounting holes and clip locations. Install trim panel fasteners and press trim into place to engage push clips. Verify all trim panels fit securely and align correctly with adjacent panels. Ensure trunk weatherstripping seals properly and is not pinched by trim panels.

Reassembly

1. Reconnect negative battery cable and verify all electrical functions (tail lamps, side markers, sensors) operate correctly
2. Reinstall rear wheel and torque lug nuts to specification per Dodge Viper requirements
3. Test fit trunk lid closing and latching to verify quarter panel alignment has not affected trunk operation
4. If quarter panel work was performed due to collision damage, have vehicle alignment checked as suspension or frame mounting points may have been affected

Verification

• Verify all body panel gaps around the quarter panel are even and consistent with the opposite side of vehicle (door gap, trunk gap, bumper gap should be within 1-2mm side-to-side)
• Check that all welds are solid with no cracks or gaps visible, and grind finish is smooth without low spots
• Verify all electrical components in quarter panel area function correctly (tail lamps, turn signals, side markers, backup sensors if equipped)
• Inspect all trim pieces for secure mounting and proper alignment with no rattles or loose sections
• Close trunk and verify proper sealing with no light leaks or gaps in weatherstripping
• Have a qualified technician verify structural integrity of quarter panel welds before vehicle is painted and returned to service

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