2000-2003 Honda TRX350 Rancher factory service manual, Page 365Get this manual
TECHNICAL FEATURES
A.PSURETRAC TORQUE BIASING FRONT DIFFERENTIAL
CONSTRUCTION
In this mechanism, torque is transmitted through the differential using cam and follower principleThe differential is groove-fitted in the differential case (which receives torque from ring gear) so that the cam followers can move to the left and rightTorque is transmitted by contact of the cam faces at the left and right ends of the cam followers with the cam faces of the both face cams (equivalent to the side gears in conventional configuration)When the differential operates, the cam followers move to the left and right back and forth, transmitting torque to the face camsThe performance of this type of differential differs from conventional types because the torque difference is established before any relative motion takes placeThe tire dynamics dictate the torque generated so that the differential always provides the optimum torque balanceThis maintains tire adhesion and enhances directional stability and safetyThis construction differs from conventional differential in the following ways: Fewer number of structural parts Reduced steering load Greater durability