Subaru Impreza 2002 Service Manual page 66

FRONT DIFFERENTIAL (SURETRAC TYPE LIMITED SLIP DIFFERENTIAL)
Manual Transmission and Differential
2. WHEN RIGHT AND LEFT WHEELS ROTATE AT THE SAME SPEED
During normal straight-ahead driving where the right and left wheels rotate at the same speed,
the cage and cam followers rotate together, just as in conventional differentials. As a result, driving
torque is distributed equally to the right and left side gears.
NF0620
6MT-27