I just had to replace my front rotor. When I pulled it off, the dirt guard/dust cover thing (goes most of the way around the rotor, with a space cut out for caliper) was pretty beat up. One of the local k5 guys was helping me out, and said it's not needed, it just traps mud up there, so I threw it away. Well, now I can't figure out how to mount the caliper! isn't this thing needed to mount the caliper? If it's not, how do I fake one? where in the world would sell these, or should I start hitting a junk yard?