Yeah, I made the mistake of buying the chrome ones and ended up almost ripping out the valve stem trying to get them off. The thing that pissed me off about it though, was that they had been fine, going off and on just like they were supposed to, until I took the car into Walmart for an oil change and they checked the air in the tires. When they put the caps back on they screwed them up. So I took it back in and they replaced all the valve stems and gave me my money back for the caps. At least it didn't turn out too bad.
