mike, with locking f/r diffs and your tbox, all four of your wheels are turning the same no mater what, soo for you it wont, you should never feel traction controll kick in. however that truck, stock, places much of its offroad ability on its traction controll, so when you are forcing a 50-50 front to rear torque split, your tires will spin around a turn, changing the software allows them to not think that this is a problem and not force t/c on when it sees diff lock engaged


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