One of the biggest problems with mfg of parts for different vehicles. You need the vehicle to try it on. It almost sounds like they were going by either what someone told them and or the specs in the service manual. It sounds like they have good customer service and that is a rare thing these days. I bet they end up using that bracket and some other spring and come out with a new part number for the 05+ X. So if you are planning on buying, I would either wait, or call them.