A disclosed power machine has a power source with a rotational output that drives a first axle assembly with first and second wheels with one of the first and second wheels being a sensed wheel. Wheel speed and rotational speed sensors monitor the rotation speed of the first sensed wheel and the rotational output, respectively. A controller communicates with the wheel speed sensor, the rotational output speed sensor, and a braking system that is operable to brake the first and second wheels. A controller calculates, as a function of the sensed wheel and rotational output speeds, a traction score indicative of whether one of the first wheel and second wheel is slipping and signals to the braking system to brake the first wheel when the traction score indicates that the first wheel is slipping and brake the second wheel when the traction score indicates that the second wheel is slipping.