Got a quote for a rear ARB locker + compressor today: $2080 installed. Ouch.
Seems like Eaton took short cuts with their D44 lockers, pity cause if I install one myself, I'd rather not do an ARB:
"The Eaton ELocker is right up there with ARB with their Dana 30 (and 35) model, but the ELocker has an advantage due to its 12V actuation. Eaton claims that testing has shown the ELocker to be equal to ARB in strength and ease of actuation. The other ELocker models (e.g. Dana 44 & Dana 60) have a less desirable 2-pinion design that is much weaker than their comparable ARB. Their actuation, while also 12V, is different than the Dana 30 and 35 versions and not as reliable. The Eaton ELocker has similarities to the GKN produced Tru Lok differential that is standard equipment with the JK Rubicon package"
http://project-jk.com/jeep-jk-tech/d...ts-lockers-101
Cheers