I'm looking at the springs I'm about to install and noticed the tags they put on the springs are different now. One spring has the actual OME spring 4 digit part #. The other spring has a 3 digit # and an X as the 4th digit. I'm looking for any info from OME but cant find anything. Does anyone know if that designates it as a drivers side or what? I've used OME springs in the past and never noticed the different # on the tags.