The Select-Trac® II is the MP3022 two-speed, on-demand, active four-wheel drive transfer case that provides optimum traction for a wide range of conditions, while maximizing driver convenience. When operating in 4WD Auto mode, this sophisticated system anticipates and prevents slip by redirecting torque as necessary, up to 100 percent to either the front or rear axle if needed.
For added traction capability when traversing steep grades, rough terrain or extremely poor traction surfaces, the transfer case includes a 4WD Low mode. This second speed gear multiplies engine torque 2.72 times and locks the clutch pack for maximum traction.
Electric shifting between 4WD AUTO and 4WD Low is effected with a console-mounted switch. A pushpin button is used to shift to Neutral mode.
The MP3022 transfer case provides the following benefits:
Active, on-demand four-wheel drive requires no driver input.
Instantly anticipates slip and preemptively redirects torque as needed.
Vehicle stability under all conditions because torque is constantly being transferred.
4WD Low operation mode provides an advantage over vehicles equipped with a single-speed all-wheel drive transfer case.
Electric shifting between 4WD Auto and 4WD Low provides smooth operation and improved NVH control compared to systems with mechanical linkage.
Enhanced traction and stability provided by the Traction Control and Electronic Stability Program (ESP) working in tandem with four-wheel-drive.
A robust design and sealing for reliability.
Maintenance-free.
A neutral mode permits flat towing.
OPERATING RANGES
Transfer case operating ranges are:
Operating positions: 2WD - 4WD Auto - N - 4WD Low.
2WD = 2 wheel drive.
4WD Auto = Electronically controlled wet clutch for torque biasing.
N = Transfer case neutral for 4-wheel flat recreational towing.
4WD Low = Low range (2.72:1) part time mode.
The 4WD Low range is for off road use only. It is not for use on hard surface roads unless the road surface is wet, slippery, or covered by ice and snow.
The low range reduction gear system is operative in 4WD Low range only. This range is for extra pulling power in off road situations. Low range reduction ratio is 2.72:1.
************************************************************
Command Trac® II with the new MP1522 two-speed, part-time four-wheel drive transfer case is the entry level four-wheel drive system. Functionally, the system performs the same way as other two-speed, part-time transfer cases. The most significant difference is electric shift, engaged with a console-mounted switch.
Command Trac® 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. 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. It can be engaged at speeds under 55 MPH. 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 second gear set multiplies torque by 2.72:1, providing traditional Jeep capability.
The MP1522 transfer case provides the following benefits:
Electric shift operation, with a console-mounted switch that replaces the shift lever typical of systems with mechanical linkage.
Command Trac® II with smooth operation and improved NVH control compared to systems with mechanical linkage.
Traditional 2WD, 4WD Lock, Neutral and 4WD Low operation modes, and shift-on-the-fly capability.
4WD Low operation mode provides an advantage over vehicles equipped with a single-speed all-wheel drive transfer case.
Enhanced traction and stability provided by the Traction Control and Electronic Stability Program (ESP) working in tandem with four-wheel drive, including Hill Start Assist, Hill Descent Control and Trailer Sway Control.
Maintenance-free.
OPERATING RANGES
Transfer case operating ranges are:
Operating positions: 2WD - 4WD LOCK- N - 4WD LOW.
2WD - 2 Wheel Drive.
4WD LOCK- 4 High Part Time.
N - Transfer case neutral for 4-wheel flat recreational towing .
4WD LOW- Low range (2.72:1) part time mode
but I would have bought a Rav or alike.
