I just got an 86 Trans Am and the spoiler is all pitted and eaten away. I look closer and its made of rubber or something similar. I assume I have to replace it since I can't bondo or sand it. I'm considering trying spray on bedliner since thats what it looks like right now. Any tips for repairing it? Is it even stock? And can I fit my louvers on it?

 

Here's the best pic I have of it.

 

Yes, it's stock. When I got my car, the aerowing was also very faded and pitted. It looked pretty bad, so I took the thing off and repainted it. I didn't really do any sanding, because I wasn't sure if it would just make it worse. I found some spray paint at Lowes that was for rubber or plastic, so I got a few cans of that and a can of primer. I first used the primer and then applied a few coats of the gloss black paint. Now, it looks great, but the pits are still visible up close.

 

if you plan on keeping your car for a while and especially painting it, get the fiberglass one. IMHO its not worth the effort vs quality of results to fix the stock one even tho the fiberglass is expensive.

 

I plan on keeping it but I'm not paying $300+ for a spoiler when I can fix this up for under $20 and some time.

 

Part of the problem with those spoilers is that water wicks up the attachment points and causes the steel inside to rust. When the steel inside rusts, it causes the rubber to split. Repairing the outside only will not solve the problem. What I did was grind out the rubber around the steel, POR-15 it, then fill up the area around the steel with sealant. After all that was done, I fiberglassed over the sealant and the crack. It looked okay, but I never did paint mine because I decided to get a fiberglass replacement due to the original spoiler's weight disadvantage. I hated popping the latch button and having to bolt out of the car door to get to the hatch before the weight of the spoiler caused the hatch to shut by itself.