How much torque will ATRAC actually transfer?

Not a %, but ft-lbs.

My knowledge of off roading is limited. But don't LSD differentials have a break-away torque rating? ie, How many ft-lbs they can transfer before opening. If ATRAC can't transfer more ft-lbs than an LSD, is it as good?

My current vehicle has a 4-channel ABS system with 4 wheel speed sensors and electric/hydraulic control

The dynamic stability system has throttle and 2-channel brake control (and other things).

The system is good. It works great in the corners and on most terrain. But it seems the system will not apply enough braking force to transfer a lot of torque (for going up a steep incline).

I'm guessing a master cylinder can generate about 400-600 psi of brake fluid pressure? How much can ATRAC generate?