But I still do not think you are fully understanding how my diff is working.
When it is locked in "trac" or what ever mode you call it, I can just roll out of gear in neutral around a paved curve at 2 mph and the tires are screeching barking like my old 82 toyota use to when the front hubs were locked in lol.
Now When diss-engaged its like a "open" rear end to me. No tire sound at all. A very smooth ride and it turns like a car.
I fully understand how your rear axle works. In the "locked" position it will certainly bark the rears since the clutch packs are pressed together. In other words it's somewhat locked -> barking tires.
When it's in the LSD mode, it still is a LSD differential like was mentioned. LSDs are always engaged, they have preload for a reason and will also bark the tires a little when you apply gas. Most LSDs are about 25% locking, but that amount changes depending on road conditions, tires, etc... Some higher performance vehicles have factory LSDs that are 50% locking, but no matter how much a clutch- based LSD "locks", they never truly lock, nor are they never open unless badly worn.
Detroit truetrac (torsen- type gear driven LSD) also never locks up, but torsen- type LSD can ALWAYS apply the predefined amount of torque to the wheel with more grip as long as the other side has some grip available. That's why you can easily cheat a torsen-type diff by applying brakes - even with a tire up in the air you can keep on going. Under normal use, torsen- type LSDs don't really wear out.
Clutch- based diffs can be cheated the same way as torsen- type (apply brakes/ e-brake), but it will kill the clutch packs really quickly so I wouldn't really recommend it. Same happens if you've got one tire wedged between rocks and the other up in the air - apply gas and say bye-bye to the clutches
Ected works fine for road use and light to medium off-road, but for that kind of use I'd certainly choose Truetrac over the Ected. I myself would've gone with a truetrac in the back on my daily driver ZJ, but virtually no lockers are available for the D44a... so I had to make do with the stock LSD
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...
1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***