It was really pretty simple (in concept, difficult in execution). I disassembled a shock leaving the arm attached to the shaft. I removed an arm from a shock from the opposite side. I drilled and tapped the shaft to accept a 1/2" bolt. I drilled out the unattached arm to 7/8" and used spacers from Lowe's to make up the difference in diameter between 7/8 and 1/2. While the shaft was out of the shock body, I drilled and tapped zerks. Once assembled, the spacing between the two arm ends (by sheer luck) is perfect. Installation requires relocating the brake line and cutting out a piece of the gusset aft of the shock.
I will take a close up picture of the uninstalled passenger side link and everything will make much more sense.