Mp2010 Transfer Case - Service Information Jeep Grand Cherokee WK2

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The ITC (Integrated Transfer Case, MP2010) is a single-speed transfer case and it is used in Grand Cherokee's new Quadra- Trac I Full-Time 4-Wheel Drive System. It provides convenient full-time 4-wheel drive. The transfer case operates with an open center differential dividing engine torque 50 percent torque to the front axle and 50 of torque to the rear axle. The Brake Traction Control System, which combines standard ABS and Traction Control, provides resistance to any wheel that is slipping to allow additional torque transfer to wheels with traction.

The MP2010 single-speed transfer case provides the following benefits

1. No shift lever or driver interaction required.
2. Full-time 4-wheel drive provides smooth operation and vehicle stability under all conditions because torque is constantly being transferred.
3. Torque distribution provides traction to maintain forward motion under most conditions.
4. The Brake Traction Control System (BTCS) works in tandem with full-time 4 wheel drive. BTCS provides resistance to any wheel that is slipping to allow additional torque transfer to wheels with traction.
5. Robust design and improved sealing enhance reliability.
6. No maintenance required.

OPERATION

Full-time 4-wheel drive distributes torque to all wheels under all conditions. The transfer case center differential divides torque to the front and rear axles, while also allowing the driveshafts to rotate at different speeds to account for front and rear wheels traveling different distances while turning. Given that the drive shafts can rotate at different speeds, the vehicle can remain in full-time 4-wheel drive mode indefinitely - even on dry pavement - without threat of damage to the drivetrain. The vehicle uses Brake Traction Control to modulate the torque from one wheel to another across each axle and the transfer case.

TRANSFER CASE - MP2010

DIAGNOSIS CHART

TORQUE SPECIFICATIONS

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1. Raise vehicle.
2. Remove drain plug (1) and drain fluid.
3. Reinstall drain plug and tighten to 22-28 N.m (16-21 ft.lbs.). CAUTION: Do not allow propshafts to hang at attached end. Damage to joint can result.
4. Remove the front and rear propeller shafts. Refer to «SHAFT, DRIVE, FRONT , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/driveshaft-universal-joints/#propeller-shaft__removal) and «SHAFT, DRIVE, REAR , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/driveshaft-universal-joints/#propeller-shaft) .
5. Support transmission with jack stand.
6. Remove rear crossmember and skid plate, if equipped.
7. Support transfer case with transmission jack and secure with chains.
8. Remove all bolts (2) attaching transfer case to transmission (1).
9. Pull transfer case and jack rearward to disengage transfer case.
10. Remove transfer case from under vehicle.

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1. Place the transfer case in a shallow pan and remove the fill and drain plugs to drain the remainder of the fluid.
2. Remove all the case bolts (1).
3. Using a prybar at notches (2, 3), carefully separate the case halves.
4. While lifting evenly, remove the chain (1) and sprockets (2, 3) from the input shaft and front output shaft.
5. Remove the snap ring (1) and the thrust washer (2) from the input shaft (3).
6. Remove the input shaft snap ring (1) from the input shaft (2).
7. Properly support the case half with input shaft off the work bench.
8. Using a plastic hammer (1), gently tap the input shaft (2) and remove from case half (3).
9. Remove the snap ring (1).
10. Using seal remover (special tool #7794-A, Remover, Seal) and slide hammer (special tool #C-637, Slide Hammer, Universal), remove input shaft seal (2) and discard.
11. Reinstall the input shaft into bearing and using a plastic hammer (1) gently tap on the input shaft (2) to remove input shaft bearing from the case half (3). NOTE: There is a small snap ring on the shaft that sits in a grove in the bearing. To remove the shaft, it requires the snap ring be squeezed all the way around. A simple way of squeezing the snap ring is to use a small paper clip and work it in between the snap ring and the grove in the bearing all the way around. Once squeezed, lightly tap on the shaft to remove.
12. Remove the front output shaft from the transfer case.
13. Remove the differential (1) and oil slinger (2).
14. Remove the rear output shaft in the same manner as the front output shaft.
15. Using seal remover (special tool #7794-A, Remover, Seal) and slide hammer (special tool #C-637, Slide Hammer, Universal), remove the front and rear output shaft seals and discard. (Rear output seal shown in illustration, front similar.)
16. Using bearing race remover (special tool #9585, Remover, Bearing Race) and slide hammer (special tool #C-637, Slide Hammer, Universal), remove the front and rear output shaft bearings and the support bearing in the rear case half. (Front output support bearing shown in illustration, all others similar.)

ASSEMBLY

Note. Lubricate all seals with MOPAR® ATF+4 prior to installation.

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1. Clean any sealer from the case halves.
2. Using seal installer (special tool #8802, Installer, Seal) (1), install rear output seal (2) into the case half (3).
3. Using seal installer (special tool #8802, Installer, Seal) (1), install front output seal into case half (2).
4. Using seal installer (special tool #9672, Installer, Seal) (2) with drive handle (special tool #C-4171, Driver Handle, Universal) (1), install input shaft seal (3) into case half (4).
5. Install the snap ring (1).
6. Install wave spacer (2) on input shaft (1).
7. Install bearing (3) onto input shaft (1) and press into place.
8. Install snap ring (1) on input shaft (2).
9. Install input shaft bearing spacer (1) into the case half (2).
10. Install input shaft and bearing assembly (1) into case half (2) and press into place. NOTE: Both output shaft bearings have a tapered inner race that must be installed toward the seal.
11. Properly support case half in press, and using (special tool #9227, Gauge, Pinion Height) (1), press bearing into case (2). (Front output bearing shown in illustration, rear output bearing uses the same tool and process.)
12. Install the front output shaft. Start the shaft into the bearing by hand with a rocking action to get the snap ring started into the bearing.
13. Seat the front output shaft (3) into the bearing and case (4) using installer (special tool #C-4657, Installer, Seal) (2) and Handle (special tool #C-4171, Driver Handle, Universal) (1).
14. Install the rear output shaft. Start the shaft into the bearing by hand with a rocking action to get the snap ring started into the bearing.
15. Seat the rear output shaft (3) into the bearing and case (4) using installer (special tool #C-4657, Installer, Seal) (2) inverted and Handle (special tool #C-4171, Driver Handle, Universal) (1).
16. Install the thrust washer (2) on the input shaft (3) with the four groves upward and install snap ring (1). NOTE: There is a blue link on one side of the chain. This blue link MUST be installed facing upward.
17. Install the chain (1) and sprockets (2, 3) on the input shaft and front output shaft.
18. Install the oil slinger (2) differential (1).
19. Apply a small amount of RTV to the magnet to hold in place and install.
20. After installing differential, turn so the oil slinger will hold differential in place during assembly of the case halves.
21. Apply bead of Mopar® Gasket Maker, or equivalent, to one of the mating surfaces of the front or rear housing.
22. Install the rear case half. While installing the case half, rotate the output shaft flange back and forth to engage the input shaft into the differential.
23. Install case bolts and tighten housing bolts in a crisscross pattern to 27 N.m (20 ft.lbs.).

INSTALLATION

1. Mount transfer case on a transmission jack.
2. Secure transfer case to jack with chains.
3. Position transfer case under vehicle.
4. Align transfer case and transmission (1) shafts and install transfer case onto the transmission.
5. Install and tighten all transfer case attaching bolts (2) to 41-49 N.m (30-36 ft. lbs.) torque.
6. Connect front propeller shaft and install rear propeller shaft. Refer to «SHAFT, DRIVE, FRONT , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/driveshaft-universal-joints/#propeller-shaft__installation) and «SHAFT, DRIVE, REAR , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/driveshaft-universal-joints/#propeller-shaft) .
7. Remove transfer case fill plug (2).
8. Fill transfer case with correct fluid. Correct as necessary. Refer to «CAPACITIES AND RECOMMENDED FLUIDS , DESCRIPTION»(/jeep/grand-cherokee/wk2-2010-2013/remont/fuses-circuit-breakers/#vehicle-quick-reference) .
9. Install the transfer case fill plug (2). Tighten the plug to 22-28 N.m (16-21 ft.lbs.).
10. Install rear crossmember and skid plate, if equipped. Tighten crossmember bolts to 41 N.m (30 ft. lbs.) torque.
11. Remove transmission jack and support stand.
12. Lower vehicle and verify transfer case operation.

SPECIAL TOOLS

7794-A - Remover, Seal (Originally Shipped In Kit Number(s) 6645.) 8802 - Installer, Seal (Originally Shipped In Kit Number(s) 8664, 8665, 8665CC, 8702.) 9227 - Gauge, Pinion Height (Originally Shipped In Kit Number(s) 9329-SUP, 9515-SUP, 9516-SUP, 9517-SUP, 9518, 9519, 9540-SUP, 9541-SUP.) 9585 - Remover, Bearing Race (Originally Shipped In Kit Number(s) 9691.) 9672 - Installer, Seal (Originally Shipped In Kit Number(s) 9696, 9697, 9698.) C-4171 - Driver Handle, Universal (Originally Shipped In Kit Number(s) 9202, 9202A-CAN, 9202CC, 9299, 9299CC, 9299CC, 9300A-CAN.) C-4657 - Installer, Seal C-637 - Slide Hammer, Universal (Originally Shipped In Kit Number(s) 9202.)

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FLUID DRAIN/REFILL

The fill and drain plugs are both in the rear case.

1. Raise vehicle. Ensure that the vehicle is level on the hoist.
2. Position drain pan under transfer case.
3. Remove drain (1) and fill (2) plugs and drain lubricant completely.
4. Install drain plug. Tighten plug to 22-28 N.m (16-21 ft. lbs.).
5. Remove drain pan. NOTE: In order to perform the next step, obtain a length of thin steel rod. Bend a section 38 mm (1.5 in.) long, 90 degrees to the remainder of the rod. Use the bent end of the steel rod as a dipstick to determine the fluid level in the transfer case.
6. The transfer case must be filled to within 25-35 mm (0.98-1.38 in.) of the bottom edge of fill plug opening with the required fluid. Refer to «CAPACITIES AND RECOMMENDED FLUIDS , DESCRIPTION»(/jeep/grand-cherokee/wk2-2010-2013/remont/fuses-circuit-breakers/#vehicle-quick-reference) .
7. Install and tighten fill plug to 22-28 N.m (16-21 ft. lbs.).
8. Lower vehicle.

REMOVAL

1. Remove the transfer case from the vehicle. Refer to «REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/transfer-case/#mp2010-transfer-case-service-information__removal) .
2. Remove the front input shaft seal with a suitable pry tool or a screw mounted in a slide hammer.

Note. Lubricate all seals with MOPAR® ATF+4 prior to installation.

1. Using seal installer (special tool #9672, Installer, Seal) (2) with drive handle (special tool #C-4171, Driver Handle, Universal) (1), install input shaft seal (3) into case half (4).
2. Install the transfer case into the vehicle. Refer to «INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/transfer-case/#mp2010-transfer-case-service-information__installation) .
3. Check the transfer case fluid. Correct as necessary. Refer to «STANDARD PROCEDURE»(/jeep/grand-cherokee/wk2-2010-2013/remont/transfer-case/#mp2010-transfer-case-service-information) . .

The front output shaft seal cannot be serviced in the vehicle. The transfer case must be disassembled to remove the front output shaft assembly and seal. Refer to DISASSEMBLY . .

The rear output shaft seal cannot be serviced in the vehicle. The transfer case must be disassembled to remove the rear output shaft assembly and seal. Refer to DISASSEMBLY .

See also:
• SHAFT, DRIVE, FRONT , REMOVAL
• SHAFT, DRIVE, REAR , REMOVAL
• SHAFT, DRIVE, FRONT , INSTALLATION
• CAPACITIES AND RECOMMENDED FLUIDS , DESCRIPTION
• REMOVAL
• INSTALLATION
• STANDARD PROCEDURE