Thanks for the help, everyone. Looking at the other thread I posted in the OP, it seemed like the issues might point to something specific. With it being electrical, I was hoping for an easy fix. I'll dig in an check everything out you all have mentioned.
I do really appreciate the patience and help you guys give. I am definitely getting my feet wet. Straight bolt-in replacements are me only real previous experience, and that with crappy inexpensive vehicles...nothing like a FB.