Over the holidays, a conversation with family about home projects spurred me to give it one more shot before giving in and just calling a plumber. Which, mind you for an American male is the single greatest sign of weakness.
The installation was about as easy as it gets. Unscrew the knob, take a bolt off, pull out the old part, and reverse. It just goes to show, do enough research and you will be surprised what you can learn.
For cold, GP30004
For hot, GP30002