I don't think you need to drop anything to do the rear sway bar bushings, just loosen the bushing bracket and there should be a nice slit in the bushing to squeeze the sway bar through. The new ones come with the slit too. Then just bolt the bracket back up.

I don't think much of the sway bar either, if I ever end up having to do the rear subframe bushings I'll probably upgrade the bar at the same time.