Transfer Case - Electronic Shift
Transfer Case1-Speed Torque-On-Demand
The transfer case transfers power from the transmission to the rear axle and front axle only when the electromechanical clutch is activated.
The electromechanical clutch assembly drives the drive sprocket after the 4x4 electronic module activates the clutch coil. The drive sprocket turns the drive chain that rotates the front output shaft and the front driveshaft.
2-Speed Torque-On-Demand
4x4 Auto Mode
Torque from the transmission is transferred to the input shaft which drives the rear output shaft that drives the rear axle assembly. The electromechanical clutch assembly drives the drive sprocket after the 4x4 electronic module activates the clutch coil. The drive sprocket turns the drive chain that rotates the front output shaft and the front driveshaft.
4x4 High Mode
The operation is the same as in Auto mode, except that the 4x4 electronic module constantly activates the electromechanical clutch assembly.
4x4 Low Mode
The high-low shift occurs when the reduction shift fork moves the high-low collar to lock the planetary gearset to the output shaft. Then, torque transmitted through the sun gear from the input shaft turns the front planetary gearset assembly. The front planetary gearset assembly is now engaged and provides transfer case speed reduction.