eaton e-locker is a selectable (electronic activated) detroit locker
Sorry but wrong. The ELocker is open then locks like a spool, not like a Detroit Locker. I WISH it worked that way as it would be much better than fully locked.
These locker threads frequently go off track.
Part of the confusion is that many users call the Rubi locker an ELocker. As others have mentioned, it's an entirely different selectable made by GKN. Eaton builds a product trademarked 'ELocker'. I've faced this confusion many times as customers frequently confuse Auburns Ected with the ELocker too.
A bit of history- Tractech made the Detroit Locker, Truetrac, E-Z Locker, Gearless Locker, Electrac and No-Spin Locker for many years. The Eaton Corp bought Tractech in 2005 and immediately made a lot of changes. Most not so good. Eaton now builds the Detroit Locker, Truetrac, the Gearless (ATV locker) and a couple off highway industrial products. They also still produce their Eaton Posi and ELocker. The Eaton ELocker has also been around for years but it's most commonly seen in factory applications. Some of these factory applications also fit some aftermarket axles and they released some of these through aftermarket distributors. This is where Eaton had trouble and why the GKN factory Rubi locker isn't considered a great locker.
The OE selectable lockers were built to GM and Jeep spec. A major consideration was price. It's ALWAYS a major consideration with the OE mfgrs. When the lockers were built they had to work in a vehicle with a specified tire size, a specified engine, a specified transmission, a specified transfer case and a specified weight. To keep costs down, the lockers were built to work within these specifications but not much more. Change any of these specs significantly, and you're going to have problems with the lockers. You may not like how your Rubi locker works but used within specs it is a great product. (BTW- The Auburn Ected was designed as an OE product but Auburn didn't get the contract so they released it in the afttermarket)
Lockers designed for aftermarket use like an ARB and the Dana 30 and 35 ELockers, are built to handle much greater loads because the vehicle specs are basically unknown. Most aftermarket diff builders build product that fails AFTER the ring gear. Cost isn't as much of a factor but reputation is crucial.
Don't be too upset when your factory part can't survive your aftermarket setup.