That's exactly right. To make it feasable to swap on the road you'd have to have enough tools to pull the brakes apart, pull the backing plates, and probably a gasket and oil for the diff. (maybe not) I'd have to buy new backing plate retainers and re-press the old bearing, and retainer back onto the shafts. I'm not exactly sure about this because I pulled the whole diff with the backing plates still on and took them to my friend to swap in the new locker, ring and pinion, axles and bearings.
2004 Rubicon, 6" lift, 35s, winch, hard top, full doors, bumpers, tire carrier and rock sliders.