see the hole with the light behind it? that is were the punched plug was. your screwdriver goes in from the back and pushed the light colored actuator to the left.

below you see the hole plugged by a valve stem cap.

If the pads are far enough out to make that necessary... would they even need adjusted?

I wouldn't think so

the previous pics were from the drivers side (forgot to mention they are different)

here is the pass side brake, it doesn't have the plug knocked out yet
it is to the right of the bolt head on the left.

Thanks for the info. I went out and adjusted the rear brakes on my 98. It makes a difference in the feel of the braking. I just assumed the brakes were being kept tight enough, but they really weren't.