Dumb question but how do I know if it works. I thought it is supposed to "lock" the wheels together sort of. We just had a ice storm down here and I thought that it was not supposed to let one tire spin freely? I could not see it from inside the car but when making a turn it seemed as if one wheel spun like crazy and the other just spun at normal speed to get me out of the corner. Is that what it is supposed to do? I have a 1987 16v euro version.