pop them out and get a measurement of them, then measure the actual clearance, typically in metric. then find an appropriately sized piece, or compare it to the part that was originally in place, if the part you just got is longer, then you know for sure its wrong. also, did the part number that was on your recieved piece match the part number in your owners manual? if so, exceed may have made a mistake in printing, or if all else fails, you may have installed the piece incorrectly. if you chaned to this particular set up, when the stock set up was different, there may be other parts that need changed to make the conversion work properly. I hope this little bit of nothing helps you out...at least to some degree.