Rackman had the Electrac which require you to run THEIR diff cover because of a shift collar built into it.
The Eaton E-Locker is a stand alone unit, can be run with any cover, and is simply toggled from locked to unlocked with an electrical charge. If you tore a line, you could re-wire it VERY easily, or run it up to your batt hard-wired for the rest of the day, or just leave it unlocked. If/When it fails, it will be left in the open position. Its a full carrier replacement and VERY beefy.
Only pic I got:

Happy with mine,
-Joe