I do have the Strange spanner wrench for the side adjusters. My problem was I wasn't sure if the adjusters were RH or LH thread so I called Strange tech line. The guy I talked to told me they were LH thread. I grunted for a bit before I came to the conclusion that the tech guy was wrong! The side adjusters were really tight in my S60. I had to put a pipe on the spanner to loosen them up. I talked to another guy who said that he takes takes the torque off the main caps before turning the adjusters and then they move easily. I was told to remove the torque from the side adjusters first but maybe that was more bad advice.
The more difficult issues I've had are on the pinion side. I needed a small tool to pull the yoke and then another tool to install the pinion bearing cups into the housing and then another tool to press the rear bearing onto the pinion shaft. I've rebuilt transmissions before so I have a selection of bearing tools, but none of them were exactly correct for the Dana 60.