Subaru impreza 2002 Service Manual page 64

FRONT DIFFERENTIAL (SURETRAC TYPE LIMITED SLIP DIFFERENTIAL)
Manual Transmission and Differential
C: OPERATION
1. WHEN RIGHT AND LEFT WHEELS ROTATE AT DIFFERENT SPEEDS
If the left and right wheels move relative to each other in the direction of arrow Z and in the direction
of arrow Y, respectively, the cam follower A is pushed by the slope B of the left face cam, moving
to the right. Then the cam follower A is pushed by the slope C of the right face cam, now moving
to the left.
Likewise, all the other cam followers also repeat rightward and leftward movements as long as the
right and left wheels continue rotating at different speeds, so the vehicle can turn a corner smooth-
ly.
(1) Cam follower
(2) Left face cam
(3) Right face cam
6MT-26
NF0579