you need to edit that and remove all the emotional sales pitch and meaningless words like "better"
Just the facts son, that's how you make your point.
I know that.
I'm not really making a point, and I'm not selling anything. I was trying to keep it simple, with regard to the question of why it might be "better" than other options.
It just ended up long because I wasn't paying attention.
There shouldn't be an argument between Quaife and Ashcroft. Either should be a fine choice.
The one I bought is not "better" than an Ashcroft. There's nothing at all wrong with an Ashcroft. My reasons for going with the Quaife had absolutely nothing to do with Ashcroft quality or performance. I really like Ashcroft. This showed up at my door with a set of Ashcroft gears, and it's going to spin Ashcroft axles.
Quaife is just another option. I pointed out that they exist largely because of racing and factory vehicles. I also pointed out why people choose that brand in other communities. There's not much else to say about them. Few people that buy them even understand how the damned things work, and fifty posts like my long one wouldn't be enough to drive the point home.
As for the Truetrac, things are a bit different.
This isn't a matter of clutches versus gears, or locker vs unlocker. You've got three differentials using the same technology, here, and two of them are built a hell of a lot better than the other option.
Turbodave is correct. With a wheel in the air, a torque biasing differential can't help you by itself. Now, you can count bias figures between the models all you want, but when you end up in that situation, it really doesn't matter much. The wheel in the air will spin, and you won't move very much. There's a bit of load built in, but not enough to overcome that.
The trick is to grab the lifted wheel with the brakes. Traction control will do it, or your left foot will do it. Either result is the same. Grab the wheel, and you get the transfer, but it's still no locker.
Cheers,
Kennith