Sounds like a broken rocker to me, maybe pushrod went straight through it. Had it happen on one I had just built only 2 hours in, replaced it and all is great!
The regular coarse/fine compound that is easy to find, is 120/280...Its been about 20 years since I've done this too, but I have always had excellent results with those grits! Hope that helps....
I have had these calipers since 1980, (when I bought my Barracuda Convertible) they are prone to sticking, you bought these 15 years ago?? check the pistons, there were alot of them produced with a chrome plated piston. The chrome plating will rust off of these pistons and stick them in the...
Our old cars are here to put parts on, because they were made when America was the number ! manufacturer, unfortunately now everything is made outside the US and quality is a foreign word....
Again sorry for any confusion, your thinking on TTY is in line, there are several sites that can explain it way better than I can, my point was that your bolts don't need replacing, and your car has no TTY bolts on it.