Just wanted to throw this out there for anyone who has run into the issue of broken studs on a spoiler or ground effects. I repaired two rear spoilers using plastic spacers, threaded studs with nuts and epoxy. Works very well, I think better and more secure than the original studs from the factory. Just make sure you let the epoxy fully harden before bolting the piece down.

 

I also did this for both of my verts... I tried regular JB Weld but it didn't hold... Then I used the steel reinforced version... Held nicely....

 

Nice, I have two verts as well. As you know finding a vert spoiler is hard so I had to take the first one I found as long as it wasn’t cracked or broken. Couple missing studs won’t deter me lol.

 

Both my cars had the spoilers but the factory epoxy had split from the spoiler... So the spoiler wasn't right to the rear deck lid. They were not molded well... I learned to use the good epoxy... Allow to fully set. Then start in the mide and pull the ends down slowly... And hope for the best...

 

What epoxy works best? My cousin just had his convertible rear spoiler separate from his decklid.

 

I've had good luck with Devcon 2-part 5-minute epoxy. Worked well on reattaching the rear spoiler studs and stand-offs on our '86 SVO, as well as the front grill support on our '79 Seville, so good on Fjiord and GM plastics. Where stuff won't be seen, though, I also back it up with a layer of fiberglass to provide support over a larger area. I still treat the parts like they're made of glass, though, just in case.

It looks like erik69&85 successfully used 'J-B Weld 8265S Original Cold-Weld Steel Reinforced Epoxy'. I have no experience with it, though. And freshness does make a difference. If you're having to force either the resin or the hardener out of the bottle/tube, it's too old to use.