2012 Jeep Wrangler JK Factory Service Manual 21 - Transmission and Transfer Case

SPECIFICATIONS

SPECIFICATIONS


GEAR RATIOS

GEAR RATIO

1ST

3.59:1

2ND

2.19:1

3RD

1.41:1

4TH

1.00:1

5TH

0.83:1

REVERSE

3.16:1

REVERSE (In 4WD Low Range)

1.93:1


SPECIFICATIONS

COMPONENT METRIC (mm) INCH (in.)

Geartrain End-play

0.3-0.5

0.012-0.020

Geartrain End-play Shim

0.2, 0.3, 0.4, and 0.5

0.008, 0.012, 0.016, 0.020

Rear Planetary Gear Set End-play

0.15-0.6

0.006-0.024

Rear Planetary Gear Set Snap-rings

3.0, 3.4, and 3.7

0.118, 0.134, 0.146

B1 Clutch Clearance - Double Sided Friction Discs

2 Disc

2.3-2.7

0.091-0.106

3 Disc

2.7-3.1

0.106-0.122

4 Disc

3.0-3.4

0.118-0.134

B1 Clutch Clearance - Single Sided Friction Discs

4 Disc

2.2-2.6

0.087-0.102

6 Disc

2.4-2.8

0.095-0.110

8 Disc

2.6-3.0

0.102-0.118

B1 Clutch Snap-rings

2.6, 2.9, 3.2, 3.5, 3.8, and 4.1

0.102, 0.114, 0.126, 0.138, 0.150, 0.162

B2 Clutch Clearance

4 Disc

1.9-2.3

0.075-0.091

5 Disc

2.0-2.4

0.079-0.095

B2 Clutch Snap-rings

2.9, 3.2, 3.5, 3.8, and 4.1

0.114, 0.126, 0.138, 0.150, 0.162

B3 Clutch Clearance

1.0-1.4

0.039-0.055

B3 Clutch Snap-rings

3.2, 3.5, 3.8, 4.1, 4.4, and 4.7

0.126, 0.138, 0.150, 0.162, 0.173, 0.185

K1 Clutch Clearance - Double Sided Friction Discs

3 Disc

2.7-3.1

0.106-0.122

4 Disc

3.0-3.4

0.118-0.134

5 Disc

3.3-3.7

0.130-0.146

6 Disc

3.6-4.0

0.142-0.158

K1 Clutch Clearance - Single Sided Friction Discs

6 Disc

2.4-2.8

0.095-0.110

8 Disc

2.6-3.0

0.102-0.118

10 Disc

2.8-3.2

0.110-0.126

12 Disc

2.9-3.3

0.114-0.130

K1 Clutch Snap-rings

2.6, 2.9, 3.2, 3.5, 3.8, and 4.1

0.102, 0.114, 0.126, 0.138, 0.150, 0.162

K2 Clutch Clearance

3 Disc

2.3-2.7

0.091-0.106

4 Disc

2.4-2.8

0.095-0.110

5 Disc

2.5-2.9

0.099-0.114

6 Disc

2.7-3.1

0.106-0.122

K2 Clutch Snap-rings

2.3, 2.6, 2.9, 3.2, 3.5, and 3.8

0.091, 0.102, 0.114, 0.126, 0.138, 0.150

K3 Clutch Clearance - Double Sided Friction Discs

3 Disc

2.3-2.7

0.091-0.106

4 Disc

2.4-2.8

0.095-0.110

5 Disc

2.5-2.9

0.099-0.114

K3 Clutch Clearance - Single Sided Friction Discs

6 Disc

2.3-2.7

0.091-0.106

8 Disc

2.4-2.8

0.095-0.110

10 Disc

2.5-2.9

0.099-0.114

K3 Clutch Snap-rings

2.0, 2.3, 2.6, 2.9, 3.2, and 3.5

0.079, 0.091, 0.102, 0.114, 0.126, 0.138


TORQUE SPECIFICATIONS

DESCRIPTION N·m Ft. Lbs. In. Lbs.

Bolt, B2 Clutch Carrier

16

-

141

Bolt, B1 Carrier to Converter Housing

10

-

89

Bolt, Oil Pump

20

-

177

Nut, Propeller Flange

200

148

-

Nut, 4X4 Adapter Shaft

200

147.5

-

Bolt, Electrohydraulic Unit

8

-

71

Bolt, Transmission Housing to Converter Housing

20

-

177

Bolts, 4X4 Adapter Housing

20

-

177

Bolts, Oil Pan

8

-

71

Screws, Valve Body/Housing Side Cover

4

-

35

Bolt, Shift Plate

8

-

71

Bolt, Solenoid Leaf Spring

8

-

71

Nut, Shifter Mechanism to Floor Pan

12

-

105

Bolt, Adapter Plug

2.5

-

22

Bolt, Transmission to Engine

39

29

-

Bolt, Crossmember to Frame

68

50

-

Bolt, Rear Support to Transmission

47

39

-

Bolt, Clevis Bracket to Crossmember

47

39

-

Bolt, Clevis Bracket to Rear Support

68

50

-

Bolt, Torque Converter

42

31

-


NAG1 VALVE BODY SPRING DIMENSION

VALVE

SPRING FREE LENGTH

TOTAL COILS

2-3 Holding

18.8 -19.6 mm (0.74 - 0.77 in.)

12

T/C Clutch Damper

37.5 - 38.5 mm (1.48 - 1.51 in.)

19.5

1-2 / 4-5 Overlap

20.95 - 21.65 mm (0.82 - 0.85 In.)

14.5

Shift Pressure Regulator

22.4 - 23.6 mm (0.88 - 0.93 in.)

14.5

Control Valve Pressure Regulator

79.2 - 82.4 mm (3.12 - 3.24 in.)

29

Shift Solenoid Pressure Regulating Valve

32.6 - 34.4 mm (1.28 - 1.35 in.)

15.5

T/C Clutch (LU) Regulator

22.8 - 23.6 mm (0.90 - 0.93 in.)

18.5

B2 Shift Valve

25.8 - 27.0 mm (1.01 - 1.06 in.)

16.5

3/4 Over Lap

21.0 - 20.4 mm (0.83 - 0.80 in.)

13

3-4 Holding, 1-2 / 4-5 Holding, 1-2 / 4-5 Shift Pressure

21.1 - 22.5 mm (0.83 - 0.88 in.)

14

3-4 Command, 3-4 Shift Pressure, 1-2 / 4-5 Command, 2-3 Shift Pressure, 2-3 Command

23.9 - 25.3 mm (0.94 -1.00 in.)

11.5

Lubricating Pressure Regulating Valve

64.8 - 68.2 mm (2.55 - 2.68 in.)

24

2-3 Overlap

16.9 - 18.7 mm (0.66 - 0.74 in.)

13

Line Pressure Regulator

43.8 - 46.2 mm (1.72 - 1.82 in.)

13.5