Service Information: Description

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: NV245 Transfer Case

Courtesy of DAIMLERCHRYSLER CORP.

1 - CLUTCH ASSEMBLY	7 - ANTI-ROTATION BRACKET
2 - OIL PUMP	8 - SHIFT MOTOR AND MODE SENSOR
3 - REAR OUTPUT FLANGE	9 - FRONT OUTPUT SHAFT AND FLANGE
4 - DAMPER	10 - LOW RANGE PLANETARY
5 - ROLL PIN	11 - INPUT SEAL
6 - SECTOR ROLLER	12 - DIFFERENTIAL

The NV245 transfer case provides Full-Time Active Four-Wheel Drive for optimum traction in a wide range of conditions and is used in Quadra-Trac® II and Quadra-Drive® II systems. The transfer case center differential distributes torque 48 percent to the front axle and 52 percent to the rear axle along with an electronically controlled clutch pack that is coupled to the center differential for torque biasing. The NV245 electronics provide an active system because it can anticipate and prevent slip. The transfer case can redistribute 100 percent of torque to the front or rear axle, depending on need. For added traction when traversing steep grades, rough terrain or extremely slippery/poor traction surfaces at low speeds, the transfer case can be switched into 4WD Low, which multiplies engine torque 2.72 times and locks the clutch pack for maximum traction at all times. The Neutral mode allows the vehicle to be flat towed behind another vehicle.

Electric shifting is accomplished with a T-handle transfer case lever in the shifter assembly to provide simplified operation and positive engagement of 4 Low. A push pin button is provided to shifting the transfer case into NEUTRAL.