1991 Dodge Stealth & Mitsubishi 3000GT Tail Panel: A Guide to Cracks, Leaks, and Replacement

Symptoms of Tail Panel Failure

Failure of the tail panel on a 1991 Dodge Stealth or Mitsubishi 3000GT is almost always cosmetic or related to physical damage rather than mechanical breakdown. Here are the most common symptoms owners experience:

1. Cracks and Physical Damage

The most frequent issue is cracking of the plastic, especially on cars that have spent a lot of time in the sun. The plastic becomes brittle with age and UV exposure. Cracks can range from hairline fractures to large, spiderwebbing patterns that compromise the panel's structural integrity. These cracks not only look bad but can also allow water to enter the panel and the trunk.

2. Faded or Delaminated Appearance

Over time, the clear outer layer of the panel can begin to fade, yellow, or delaminate (peel away) from the colored layer beneath. This results in a cloudy or hazy look that dulls the appearance of the rear of the car. The red reflective areas may lose their vibrancy, and the black painted sections can fade to gray.

3. Water Leaks into Trunk or Light Housings

A cracked panel or a degraded seal around its mounting points can allow water to seep into the trunk. If you notice a damp carpet or a musty smell in the rear hatch area, a faulty tail panel seal is a possible culprit. Water can also get inside the panel itself, causing condensation and potentially shorting out the reverse light bulbs or corroding their sockets.

4. Reverse Light Failure

While the bulbs themselves are the most common point of failure, issues with the tail panel can also cause reverse lights to stop working. Water intrusion can corrode the bulb sockets or the wiring connectors. Physical damage from a minor impact could also break the mounting points for the light sockets, causing them to sit improperly or lose connection.

Buying a Used 1991 Stealth & 3000GT Tail Panel

Since new OEM panels are no longer available and aftermarket options are virtually non-existent, buying a good used OEM panel is the only option for most owners. Careful inspection is critical to avoid getting a part that's in worse shape than your current one.

What to Inspect Before You Buy

• Check for Cracks: This is the number one priority. Hold the panel up to a light source and inspect it closely from all angles. Pay special attention to the areas around the mounting studs and the screw holes for the reverse lights, as these are common stress points. Minor surface scratches can be polished, but deep cracks cannot be repaired effectively.
• Look for Delamination: Examine the panel for any signs of the clear coat peeling or bubbling. This damage is permanent and indicates the panel is breaking down from UV exposure.
• Inspect All Mounting Studs: On the back of the panel are several threaded studs used to bolt it to the car. Ensure all studs are present, straight, and not stripped. Broken studs will make it impossible to mount the panel securely.
• Verify Lettering Condition: Check the "DODGE" or "MITSUBISHI" lettering. Make sure it is not peeling, faded, or missing, as restoring this can be difficult. Some owners do customize these by removing the paint.
• Examine the Reverse Light Sockets: The tail panel itself does not have wiring. You will transfer your existing reverse light sockets and wiring harness to the new panel. However, inspect the openings where the sockets twist in. Ensure they are not cracked or broken, which would prevent the sockets from seating securely.

Known Issues, TSBs, and Recalls

There are no recalls or Technical Service Bulletins (TSBs) from Dodge or Mitsubishi specifically for the tail panel of the 1991 Stealth or 3000GT. All known issues are related to age and cosmetic wear, such as cracking and fading from sun exposure.

While there are several recalls for the 1991 models of these vehicles, they pertain to mechanical components like the transfer case and brake hoses, not the body panels or lighting.

Installation Guide

Replacing the tail panel is a straightforward job that most DIY mechanics can handle. The process involves removing interior trim to access the nuts that hold the panel in place.

Difficulty: 2/5
Estimated Time: 1 - 1.5 hours

Step-by-Step Replacement

1. Access the Rear Trim: Open the rear hatch. You will need to remove the interior plastic trim panels that cover the back of the taillight area. This usually involves removing some plastic clips and screws.
2. Remove the Taillight Assemblies: On some models, it may be easier to first remove the main left and right taillight assemblies. They are typically held on by a few screws and nuts accessible from inside the trunk.
3. Unbolt the Tail Panel (Center Garnish): With the trim removed, you will see the back of the tail panel and the 8-10 nuts that secure its studs to the car's body. Using a socket with an extension, carefully remove all of these nuts.
4. Disconnect and Remove: Before pulling the panel away, reach behind it and twist out the reverse light sockets. Let them hang inside the trunk. The panel should now be free. Gently pull it straight back and away from the vehicle.
5. Swap Components: Transfer your reverse light bulbs and sockets to the replacement panel. This is also a good time to clean the area on the car body where the panel mounts and inspect the foam gasket for wear.
6. Installation: Installation is the reverse of removal. Carefully guide the new panel's studs into the holes, re-install the nuts (do not overtighten), re-insert the reverse light sockets, and replace the interior trim panels.

Cost to Replace a 1991 Stealth or 3000GT Tail Panel

The cost is primarily driven by the price of a good-condition used part, as new parts are unavailable.

Frequently Asked Questions (FAQ)