Passenger-side trailing arm is in.
The front end bolt in the frame didn't make as much noise breaking free as the driver's side. But this side was trickier to break free.
On the driver's side I was able to push a breaker bar or ratchet down and toward the car. The passenger side's the opposite, and one would be pulling up and away from the car. Rather then try and lift the car up I managed to put extend a wrench with interlocking another wrench and stepping down on everything from within the wheel well, just barely.
The rear hub bolt broke free as expected for this bolt. Both bolts were in mint shape as well so re-used them with some anti-seize.