I've been trying to find an install guide to put an SS spoiler on. It looks like the end studs line up with the plastic caps inside but I would like to retain the snap locks between the studs to help hold the spoiler down tight. I read one article that suggested removing them. Any where I can find dims and drill sizes ??
Thanks

 

I just bought one from Chevy today and cannot believe that they give you no hardware or instructions.

 

Yeah, pretty impressive. The end studs didn't match the plastic plus so I marked the hatch where the outer bolts touched but since they are at an angle the hole needs to be much wider for the spoiler to sit flush. I was using the drill bit to elongate the hole when it slipped out and slid down to the gap between the hatch and rear glass. I now have a spankin' new rear window too....