Why do you call it crap? You don't even have an '09+ Taco.
I had an '05 before the '10 and can tell you it is like night and day in improved traction.
What a great idea to use the brakes instead of clutches inside the differential, to achieve the same affect... slowing down a non-traction wheel.
It works, it is from Toyota, it is guaranteed.
Trucks i build are not weekend warriors..they run into the Jungle several times a week and have to stand up to the severe road conditions. I have been doing this for years so i know what i am talking about..
here is the 2010 build.