MP1522 Transfer Case - Operation
OPERATION
Selecting 4WD High Lock, via the console-mounted switch, locks the front and rear driveshafts together; the two then rotate at the same and provide a 50 front / 50 rear torque split. It is for use only on slippery or loose surfaces, such as snow or dirt. Driving on dry roads can result in driveline binding, resulting in undesirable driving dynamics and potential vehicle damage.
Command Trac(R) II is a part-time four-wheel drive system - 2WD High is the usual driving mode, with the front axle spinning freely and a power directed to the road rear wheels.
A Neutral mode permits towing without having to disconnect the drive shafts. A pushpin button is provided to shift the transfer case into Neutral.
For severe off-road situations, 4WD Low can be engaged at speeds of 2-3 MPH. The front and rear drive shafts are locked together, and a planetary gear set multiplies torque by 2.72:1, providing traditional Jeep capability.