Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Is the bolt holding the center cap on the problem? Is it stripped out or just not moving?
But now the cap itself doesn't come off? There shouldn't be anything to hold it, unless the aluminum has oxidized and swollen and is holding it on. I would try hitting it with a rubber mallet to jolt the corrosion loose and they should fall off. If not, the caps are readily available so I wouldn't worry too much about damaging them, better the caps than the wheel.