Bob, I know the ERA rear uses 4th Gen F-body PBR calipers. The GM service manual for the 1995 Firebird and Camaro says
"This vehicle is equipped with a self-adjusting parking brake lever assembly. This mechanism automatically takes up any slack in the cable assemblies and provides the correct amount of tension in the cable assemblies when the system is engaged. The parking brake cable assemblies cannot be manually adjusted." The manual also has a procedure for adjusting the parking brake "free travel" which is copied below. Unless you know the answer off the top of your head, will you ask Doug whether the ERA parking brake assembly for the outboard braked rear is self-adjusting? And if it's not, what's the recommended procedure for adjusting it?