Yes the rear side trailing link bushings on the rear hubs is a challenge to remove, attempted it before very limited space, back then when I was using superpro bushings, just did the trailing link front bushings:You beat me to it haha! I hate the torque solution rear diff carrier inserts i have. Not because of quality, but because it seems half assed. I too had the idea of doing both right sides.
I have on order the Group N Trailing Arm Bushings. The Group N install of the lower bushing on the hub assembly looks tough and may do a split delrin bushing there.