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I have a 98 sunfire that I just bought. I wanted to check the brakes and stuff. The front wheels come off, no problems. I took the back lug nuts off and the tire wouldn't come off. It has the lock in the center of the rim. I used a grinder to shape a piece of metal to fit the hole in the center, but it must have catches under the rim next to the little slits. Is there a way of getting these things off without a proper key? If not if I take it to a tire place that might happen to have the right key, then can I have them take the tires off and leave the locks out? I have never had a wheel lock like this before and have no idea how they work. There is no lock on the front and I don't have to worry about some one taking a tire around here. They might steal the hub caps, but they come off anyway.

thanks marc