I have an 04 4Runner SR5 which has 56,000 miles on it. I replaced my front rotors and pads with Brembo's and Akebono pads about a month ago. No issues..... So today, I attempted the rear rotors and pads (same brands). Pulled off the tire and removed the caliper with no problems. Went to pull the rotor out and just about pulled my shoulder out instead! So my brother and I decided that the "light" tap of a hammer should do the trick. Well, we got them off, but didn't realize that other parts were coming off with it. I'm not sure what it's called, but the part that the rotor slides over (looks like it has brake pad material on top, with springs underneath) was being pulled off with it. The rotor came off, but it broke the retainer spring and cap off, and I can't get them back on. It bent the cap and popped off the spring from the little bolt that it's connected to. I'm assuming that whole assembly is for some type of suspension for the brake system. By the way, this happened on both sides. God forbid things go right on the other side. So now when I drive, I get a really bad "metal on metal" sound coming from both sides. It's a lot more prominant on the driver's side, but I can clearly hear it on both. So what do you guys think? It drives fine and brakes fine, I just have this extrememly loud sound coming from the rear. I'm assuming it's from the springs not being there to hold that part in place, but who knows. I guess I'll call the dealership in the morning and take it in to get checked out and have those parts replaced. Just thought I would fill you guys in on what can go wrong when you assume it'll be a short and simple process. I used some penetrating fluid before removing the rotor also. It didn't seem to do much good. Anyhow, just curious as to what you guys think......