I'm still on the original front pads (and rear shoes) at 60K, so I figured it was time to inspect them. The brakes work great, the rotors are smooth and I don't hear noises or feel pulsing when I brake. I measured the inner and outer pads at nearly 8mm, but I couldn't tell how much was the backing plate and how much was the actual braking material. I didn't remove the caliper. I know I wasn't including the shims. So...can I tell how much braking material is left, or do I need to lift up the caliper to really measure the pad thickness? If that's the case I'll just go ahead and change them.