I just cut off the left rear baffle plate. The right one was just rusted so I left that one on. I was worried if left rear caliper I replaced would get damaged easily without that plate sheilding it.
I replaced them with OEMs so they were not cheap.
I replaced those rear semi-metallic pads with Hawk HPS ceramic pads so they'll last longer this time.
After finishing the rear brakes I inspected the front ones. The front calipers and mounts are orignal. The bottom pins on both mounts were rusted shut. After using strong force to remove them I cleaned and lubricated them.