A power transfer unit is provided with a torque limiting assembly that
limits the torque transferred to driveline components when torque peaks
occur. The power transfer unit can include, a first shaft, a second
output shaft receiving drive torque, a second output shaft, and a torque
transfer mechanism. The torque transfer mechanism includes a coupling
member and a biasing member. The coupling member is located between a
driving member and a driven member and provides selective engagement
therebetween when in an engaged position. The driving member and/or the
driven member includes a recess therein receiving a portion of the
coupling member when in the engaged position. The biasing member urges
the coupling member and the driving member and/or driven member into the
engaged position.