So after replacing the right pads to eliminate the grinding noise from that side, the left started grinding too. Having just replaced the right side it only took 45 minutes but, the right side bleeder screw had been screwed up by a P.O. likely using a crescent wrench rather than a 3/8 box. While the caliper was off I put some PB Blaster on it but couldn't get it to budge. Going to try again being right careful not to corrupt the new pads, failing that I'll try heat from a mini butane torch that I have. It came in handy on my Jeep when extracting a steel bolt from the aluminum intake manifold. I had to resort to that on account of a "Gator Grip" socket just rounding the head of that bolt.

All this is based on the assumption that I can find a replacement bleeder screw in this consumer desert I live and work in. More to come...

 

Pretty sure most auto supply stores carry them. Common problem.
I really don't like suggesting this, but you may have to push the junk fluid back and clean and lube the pins the best you can so you can use the vehicle to get the right parts to finish the job right.

 

I found Russell makes made in USA bleeders and I found that NAPA has a bolt extraction kit on sale right now mfd. by Irwin, if I have to take it that far.

 

Now that I'm on furlough for the virus I had time to revisit that rounded off bleeder screw and I seem to have lost the PB Blaster but I had a large can of other penetrating oil and a bolt extractor set from my best friend. To prevent contaminating the new pads I daubed the oil onto a couple of Q tips and coated the bleeder screw threads, then squeezing in the bolt extractor socket I had to bend the brake line ever so slightly for clearance. Then using a brass drift and pin punch I pounded the socket on the shock on, the pounding with the oil made the difference. I then coated the lower threads of the new Raybestos bleeder screw with Never Seize and did a quick swap. Then it was just a matter of thoroughly bleeding the brakes but not before my vac pump blew a gasket and I had to get another one. All is well now though.