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Automatic Transmission - Allison - Overhaul: Specifications GMC Sierra 1500

Automatic Trans 38 illustrations ~1477 words

Fastener Tightening Specifications

ApplicationSpecifications
MetricEnglish
Control Valve Body Assembly to Transmission Case12 N.m108 lb in
Flange/Yoke to Output Shaft123 N.m91 lb ft
Input Speed Sensor to Torque Converter Housing12 N.m108 lb in
Low and Reverse Clutch Piston Housing to Transmission Case56 N.m42 lb ft
Manual Shift Shaft Detent Lever/Internal Mode Switch (IMS) Assembly Bolt to Manual Shift Shaft10 N.m89 lb in
Manual Shift Shaft Detent Spring to Control Valve Body Assembly12 N.m108 lb in
Oil Pump Assembly to Transmission Oil Pump Cover Assembly26 N.m20 lb ft
Oil Pan to Transmission Case26 N.m20 lb ft
Output Speed Sensor to Low and Reverse Clutch Piston Housing12 N.m108 lb in
Power Take-Off (PTO) Cover to Transmission Case43 N.m32 lb ft
Shift Valve Body to Main Valve Body12 N.m108 lb in
Shipping Bracket to Torque Converter Assembly27 N.m20 lb ft
Transmission Fluid Pressure Switch to Main Valve Body Assembly12 N.m108 lb in
Transmission Oil Pump Cover Assembly to Torque Converter Housing56 N.m42 lb ft
Turbine Speed Sensor to Transmission Case12 N.m108 lb in

Fastener Tightening Specifications

Fluid Capacity Specifications

TransmissionInitial FillRefill
LitersQuartsLitersQuarts
Allison 10001212.777.4

Fluid Quantities

End Play Specifications

ApplicationMaximum End Play
MetricEnglish
New Torque Converter0.762 mm0.0300 in
Used Torque Converter1.015 mm0.0400 in
Input Carrier and Thrust Washer1.010 mm0.0400 in
Intermediate Carrier and Thrust Washer1.010 mm0.0400 in
Output Carrier and Thrust Washer1.010 mm0.0400 in
Turbine Shaft1.549 mm0.0610 in

End Play Specifications

Selective Components Specifications

IdentificationWear LimitNew Plate Thickness
MetricEnglish
242011.400 mm (0.4488 in)11.1-11.9 mm0.4370-0.4685 in
852111.840 mm (0.4661 in)11.54-12.34 mm0.4543-0.4858 in
852212.280 mm (0.4835 in)11.98-12.78 mm0.4717-0.5031 in
852312.730 mm (0.5012 in)12.43-13.23 mm0.4894-0.5209 in
852413.180 mm (0.5189 in)12.88-13.68 mm0.5071-0.5386 in

1-2-3-4 Clutch Backplate

Dimension CThicknessIdentification
MetricEnglishMetricEnglish
1.008-1.184 mm0.0397-0.0466 in0.245-0.295 mm0.0096-0.0116 in0 Holes
1.185-1.414 mm0.0467-0.0557 in0.475-0.525 mm0.0187-0.0207 in1 Hole
1.415-1.644 mm0.0557-0.0647 in0.705-0.755 mm0.0278-0.0297 in2 Holes
1.645-1.874 mm0.0648-0.0738 in0.935-0.985 mm0.0368-0.0388 in3 Holes
1.875-2.104 mm0.0738-0.0828 in1.165-1.215 mm0.0459-0.0478 in4 Holes
2.105-2.334 mm0.0829-0.0919 in1.395-1.445 mm0.0549-0.0569 in5 Holes
2.335-2.510 mm0.0919-0.0988 in1.625-1.675 mm0.0640-0.0659 in6 Holes

Low and Reverse Clutch Piston Housing Selective Shim

Minimum ThicknessIdentification
MetricEnglish
2.435 mm0.0959 in2

Low and Reverse Clutch Steel Plate Minimum Thickness

Dimension CIdentification
MetricEnglish
35.3-35.86 mm1.393-1.412 in1
35.87-36.36 mm1.413-1.431 in2
36.37-37.27 mm1.432-1.467 in3

Low and Reverse Clutch Steel Selective Plate

Oil Pump Specifications

Part MeasuredSpecification
MetricEnglish
Bushing, Maximum ID IMPORTANT: The pump bushing must have a complete burnt-orange color Teflon® coating. If any portion of the Teflon® coating is worn and bronze material is visible, replace the pump.58.391 mm2.3015 in
Drive Gear, Maximum Side Clearance0.066 mm0.0026 in
Driven Gear, Between Flats Maximum52.165 mm2.0537 in
Driven Gear, Minimum OD108.987 mm4.2908 in
Oil Pump Body Gear Cavity, Maximum ID109.216 mm4.2988 in
Driven Gear to Oil Pump Body, Maximum Diametrical Clearance0.204 mm0.0080 in
Driven Gear, Maximum Side Clearance0.056 mm0.0022 in
Driven Gear/Crescent Tooth, Maximum Clearance0.455 mm0.0179 in
Oil Pump Body Gear Cavity, Maximum Depth24.940 mm0.9819 in
Wear Plate, Minimum Thickness2.950 mm0.1161 in
IMPORTANT
The pump bushing must have a complete burnt-orange color Teflon® coating. If any portion of the Teflon® coating is worn and bronze material is visible, replace the pump.

Oil Pump Specifications

Transmission General Specifications

Sump TemperatureResistance
Degrees CDegrees FOhms
0329.5
206810.5
4010411.5

Torque Converter Clutch Pressure Control Solenoid (TCC PCS) Specifications

Sump TemperatureResistance
Degrees CDegrees FOhms
03220.0
206822.0
4010424.5

Shift Solenoid 1 (SS1), SS2, SS3, and Modulated Main Pressure (MAIN MOD) Solenoid Specifications

Part MeasuredSpecification
MetricEnglish
Torque Converter Pump Hub Minimum OD58.250 mm2.2933 in
Torque Converter Pump Hub Minimum Distance Between Flats51.816 mm2.0400 in
Torque Converter Cover Pilot, Minimum OD43.080 mm1.6960 in
Stator Shaft, Maximum ID at Turbine Shaft Seal Ring Bore45.450 mm1.7894 in
Stator Shaft, Maximum Spline WearNo visible wearNo visible wear
Stator Shaft Bushing, Maximum ID33.850 mm1.3326 in
Transmission Oil Pump Cover Assembly Thrust Washer Thickness1.490 mm0.0590 in
1-2-3-4, 4-5-6 Clutch Housing Bushing, Maximum ID78.170 mm3.0776 in
1-2-3-4, 4-5-6 Clutch Housing Rotating Seal Bore, Maximum ID74.050 mm2.9154 in
1-2-3-4 Clutch Fiber Plates Maximum Cone0.255 mm0.0100 in
1-2-3-4 Clutch Fiber Plates Minimum Thickness2.375 mm0.0935 in
1-2-3-4 Clutch Fiber Plates Minimum Oil Groove Depth0.200 mm0.0079 in
1-2-3-4 Clutch Steel Plate Maximum Cone0.200 mm0.0079 in
1-2-3-4 Clutch Steel Plate Minimum Thickness2.135 mm0.0841 in
1-2-3-4 Clutch Backing Plate Maximum Cone0.000 mm0.0000 in
4-5-6 Clutch Fiber Plates Maximum Cone0.225 mm0.0089 in
4-5-6 Clutch Fiber Plates Minimum Thickness2.375 mm0.0935 in
4-5-6 Clutch Fiber Plates Minimum Oil Groove Depth0.200 mm0.0079 in
4-5-6 Clutch Steel Plate Maximum Cone0.240 mm0.0094 in
4-5-6 Clutch Steel Plate Minimum Thickness2.135 mm0.0841 in
Turbine Shaft Bushing, Maximum ID20.150 mm0.7933 in
Turbine Shaft Thrust Washer2.590 mm0.102 in
3rd, 5th and Reverse/2-6 Clutch Fiber Plate Maximum Cone0.225 mm0.0089 in
3rd, 5th and Reverse/2-6 Clutch Fiber Plate Minimum Thickness2.375 mm0.0935 in
3rd, 5th and Reverse/2-6 Clutch Fiber Plate Minimum Oil Groove Depth0.200 mm0.0079 in
3rd, 5th and Reverse/2-6 Clutch Steel Plate Maximum Cone0.400 mm0.0157 in
3rd, 5th and Reverse/2-6 Clutch Steel Plate Minimum Thickness2.440 mm0.0961 in
3rd, 5th and Reverse/2-6 Clutch Spring Plate Maximum Cone0.400 mm0.0157 in
3rd, 5th and Reverse/2-6 Clutch Spring Plate Minimum Thickness3.110 mm0.1224 in
3rd, 5th and Reverse Clutch Backing Plate Maximum Cone0.000 mm0.0000 in
3rd, 5th and Reverse Clutch Backing Plate Minimum Thickness15.325 mm0.6033 in
Thrust Plate Inner Rim, Minimum Thickness3.000 mm0.1181 in
2-6 Clutch Backing Plate Maximum Cone0.000 mm0.0000 in
2-6 Clutch Backing Plate Minimum Thickness15.400 mm0.6063 in
Low and Reverse Clutch Fiber Plate Maximum Cone0.225 mm0.0089 in
Low and Reverse Clutch Fiber Plate Minimum Thickness2.375 mm0.0935 in
Low and Reverse Clutch Fiber Plate Minimum Oil Groove Depth0.200 mm0.0079 in
Low and Reverse Clutch Steel Plate Maximum Cone0.295 mm0.0116 in
Low and Reverse Clutch Backing Plate Maximum Cone0.000 mm0.0000 in
Low and Reverse Clutch Backing Plate Minimum Thickness17.900 mm0.704 in
Transmission Case Clutch Plate, Spline Wear (Notching)1.150 mm0.0450 in
Input Internal Ring Gear, Maximum Spline Wear (Notching)0.130 mm0.0051 in
Input Carrier Assembly Bushing, Maximum ID50.690 mm1.9957 in
Input Carrier Assembly Thrust Washers Thickness1.490 mm0.0590 in
Input Carrier Assembly Pinion Maximum End Play1.010 mm0.0400 in
Intermediate Internal Ring Gear, Maximum Spline Wear (Notching)0.130 mm0.0051 in
Intermediate Internal Ring Gear Thrust Washer Thickness1.490 mm0.0590 in
Intermediate Carrier Assembly Pinion Maximum End Play1.010 mm0.0400 in
Intermediate Carrier Bushing, Maximum ID36.575 mm1.4400 in
Output Carrier Internal Ring Gear, Maximum Spline Wear (Notching)0.130 mm0.0051 in
Output Carrier Assembly Pinion Maximum End Play1.010 mm0.0400 in
Main Shaft Pilot, Minimum OD (Turbine Shaft and Output Shaft)19.987 mm0.7869 in
Main Shaft Journal, Minimum OD (Intermediate Carrier Bushing)36.405 mm1.4333 in
Output Shaft Bushing (2WD and 4WD), Maximum ID20.150 mm0.7933 in
Output Shaft (2WD and 4WD), Minimum Bearing Surface OD44.978 mm1.7708 in
Park Pawl Gear Wear0.000 mm0.0000 in
Output Yoke, Output Seal Surface, Minimum OD65.080 mm2.5622 in

Wear Limits

ConditionMain Pressure at 600 RPMMain Pressure at 2100 RPM
Forward/Rev Converter w/MAIN MOD Solenoid Active590-720 kPa (85-105 psi)634-758 kPa (92-110 psi)
Forward Converter w/MAIN MOD Solenoid Inactive700-138 kPa (101-200 psi)1515-1795 kPa (220-260 psi)
*Forward Lock-up w/MAIN MOD Solenoid ActiveN/A510-627 kPa (74- 91 psi)
Forward Lock-up w/MAIN MOD Solenoid InactiveN/A1000-1170 kPa (145-170 psi)
Neutral/Park w/MAIN MOD Solenoid Active590-720 kPa (85-05 psi)N/A
Neutral/Park800-1655 kPa (130-240 psi)1515-1795 kPa (220-260 psi)
* Medium duty gasoline engines only.

Modulated Main Pressure Schedule Table (Transmissions with MAIN MOD Solenoid)

Scheme 758

Scheme 758: Disassembled Views
CalloutComponent Name
1Torque Converter
2Torque Converter Housing
3Line Pressure Test Hole Plug
4Line Pressure Test Hole Plug O-ring
5Transmission External Oil Filter
6Transmission External Oil Filter Magnet
7Transmission External Oil Filter Adapter
8Torque Converter Housing Bolt, M10 x 1.5 x 50, Flanged Head (18)
9Torque Converter Housing Bolt, M10 x 1.5 x 70, Flanged Head (2)
10Sensor Shipping Cover
11Vehicle Speed Sensor Bolt
12Input Speed Sensor
13Vehicle Speed Sensor O-ring
14Torque Converter Housing Bolt, M10 x 1.5 x 25 (10)
15Transmission Oil Cooler Pipe Connector (2)
16Torque Converter Housing Access Hole Cover

Scheme 759

Scheme 759
CalloutComponent Name
1Torque Converter Housing/Oil Pump Cover Assembly
2Torque Converter Housing to Case Gasket
31-2-3-4, 4-5-6 Clutch Assembly
4Input Sun Gear Thrust Bearing
5Internal Retaining Ring
63rd, 5th, and Reverse Clutch Backing Plate
73rd, 5th, and Reverse Clutch Fiber Plate (4)
83rd, 5th, and Reverse Clutch Steel Plate (3)
93rd, 5th, and Reverse Clutch Piston Return Spring Assembly (3)
103rd, 5th, and Reverse Clutch Spring Plate
113rd, 5th, and Reverse Clutch Piston Assembly (Bonded Seals)

Scheme 760

Scheme 760
CalloutComponent Name
1Torque Converter Housing/Oil Pump Cover Assembly
2Torque Converter Housing Bolt, M10 x 1.5 x 50, Flanged Head (10)
3Torque Converter Housing Bolt Seal
4Torque Converter Housing
5Torque Converter Housing Gasket
6Oil Pump Cover Assembly

Scheme 761

Scheme 761
CalloutComponent Name
1Oil Pump Assembly
2Oil Pump O-Ring Seal
3Torque Converter Oil Seal
4Oil Pump Bushing
5Oil Pump Body
6Oil Pump Driven Gear
7Oil Pump Drive Gear
8Locating Pin
8Locating Pin
9Oil Pump Wear Plate

Scheme 762

Scheme 762
CalloutComponent Name
1Oil Pump Cover Assembly
2Oil Pump Cover Assembly Bearing
3Oil Pump Cover
4Bushing, 33.8 mm (1.33 in) ID
5Stator Shaft
6Torque Converter Clutch Valve
7Torque Converter Clutch Valve Spring
8Torque Converter Clutch Valve Stop
9Torque Converter Clutch Valve Retainer
10Torque Converter Clutch Relief Valve
11Torque Converter Clutch Relief Valve Spring
12Torque Converter Clutch Relief Valve Retainer
13Oil Pump Lube Regulator Valve
14Oil Pump Lube Regulator Valve Spring
15Oil Pump Lube Regulator Valve Stop
16Oil Pump Lube Regulator Valve Stop Retainer
171-2-3-4 Clutch Backfill Valve
181-2-3-4 Clutch Backfill Valve Spring
19Retaining Clip
20Pressure Regulator Valve
21Pressure Regulator Valve Spring
22Pressure Regulator Valve Stop
23Pressure Regulator Spring Stop Retainer

Scheme 763

Scheme 763
CalloutComponent Name
1Oil Pump Cover Module
2Oil Pump Assembly
3Torque Converter Housing to Case Channel Plate
4Overlap Seal Ring, End
5Overlap Seal Ring, Middle
6Oil Pump Cover Assembly
7Oil Pump Cover Assembly Bolt, M8 x 1.25 x 55, Flanged Head (5)
8Oil Pump Cover Assembly Thrust Washer
9Overlap Seal Ring (3)

Scheme 764

Scheme 764
CalloutComponent Name
11-2-3-4, 4-5-6 Clutch Assembly
2Overlap Seal Ring (2)
3Turbine Shaft Assembly
4Turbine Shaft
5Bushing, 20 mm (0.8 in) ID
61-2-3-4, 4-5-6 Clutch Piston Housing Assembly
7Power Take-Off (PTO) Gear
8Turbine Tone Wheel
91-2-3-4, 4-5-6 Clutch Housing Assembly
101-2-3-4, 4-5-6 Clutch Bushing
111-2-3-4, 4-5-6 Clutch Housing
12O-ring
13External Retaining Ring
144-5-6 Clutch Piston Inner Seal
154-5-6 Clutch Piston Outer Seal
164-5-6 Clutch Piston
174-5-6 Clutch Return Spring Assembly
181-2-3-4 Clutch Piston Outer Seal
191-2-3-4 Clutch Piston Housing
204-5-6 Clutch Piston Return Spring Retainer
211-2-3-4 Clutch Piston Inner Seal
221-2-3-4 Clutch Piston Outer Seal
231-2-3-4 Clutch Piston
241-2-3-4 Clutch Piston Return Spring Assembly
251-2-3-4 Clutch Balance Piston
261-2-3-4 Clutch Hub Internal Retainer Ring
271-2-3-4 Clutch Steel Plate (6)
281-2-3-4 Clutch Fiber Plate (6)
291-2-3-4 Clutch Selective Backing Plate 5.84-6.04 mm (0.2299-0.2378 in)
301-2-3-4 Clutch Backing Plate External Retainer Ring
311-2-3-4 Clutch Backing Plate Internal Retainer Ring
321-2-3-4 Clutch Hub Thrust Bearing Assembly
331-2-3-4 Clutch Hub
344-5-6 Clutch Hub Thrust Bearing
354-5-6 Clutch Steel Plate (7)
364-5-6 Clutch Fiber Plate (6)
374-5-6 Clutch Hub
38Input Sun Gear Thrust Washer
39Input Sun Gear
40Input Sun Gear Flange
41Input Sun Gear External Retaining Ring

Scheme 765

Scheme 765
CalloutComponent Name
20Torque Converter Housing
50Transmission Case
70Transmission Fill Tube Plug
71Transmission Fill Tube Seal (2)
72Transmission Internal Oil Filter Seal
73Transmission Internal Oil Filter
74Transmission Oil Pan Gasket
75Transmission Oil Pan Magnet
76Transmission Oil Pan
77Transmission Oil Pan Drain Plug O-ring
78Transmission Oil Pan Drain Plug
79Transmission Oil Pan Bolt, M8 x 1.25 x 20 Flanged Head
81Low and Reverse Clutch Housing, 2WD

Scheme 766

Scheme 766
CalloutComponent Name
1Automatic Transmission Case
2Transmission Case Locating Pin
3Transmission Vent Assembly
4Transmission Vent Cap
5Transmission Vent
6Nameplate Rivet
7Nameplate
8Vehicle Speed Sensor Bolt, M6 x 1.0 x 13
9Sensor Shipping Cover
10Turbine Speed Sensor
11Vehicle Speed Sensor O-Ring
12Power Take-Off (PTO) Cover Gasket (2)
13PTO Cover (2)
14PTO Cover Bolt, M10 x 1.5 x 20, Flanged Head, Coated (12)
16Manual Shift Shaft
17Manual Shift Shaft Seal
18Manual Shift Shaft Pin
19Manual Shift Shaft Detent Lever/Internal Mode Switch (IMS) Assembly
20Park Pawl Assembly
21Control Valve Body Locating Pin
22Detent Lever/IMS Bolt
23Connector Shipping Cover
24Control Valve Body Assembly
25Control Valve Body Bolt, M6 x 1.0 x 50, Flanged Head (15)
26Manual Shift Shaft Detent Spring
27Manual Shift Shaft Detent Spring Bolt M6 x 1.0 x 12. Flanged Head (2)
28Transmission Wiring Harness Assembly

Scheme 767

Scheme 767
CalloutComponent Name
12-6 Clutch Piston Assembly, Bonded Seals
2Input and 3rd, 5th, and Reverse Clutch Ring Gear
32-6 Clutch Spring Plate
4Piston Return Spring Assembly (3)
52-6 Clutch Fiber Plate (5)
62-6 Clutch Steel Plate (4)
72-6 Clutch Backing Plate
8Internal Retaining Ring
9Internal Retaining Ring
10Low and Reverse Clutch Backing Plate
11Low and Reverse Clutch Fiber Plate (6)
12Low and Reverse Clutch Steel Plate (5)
13Low and Reverse Clutch Steel Plate, Selective

Scheme 768

Scheme 768
CalloutComponent Name
1Input Carrier and Ring Gear Assembly
2Input Carrier Thrust Bearing
3Intermediate Carrier and Ring Gear Assembly
4Intermediate Carrier Thrust Bearing
5Main Shaft
6Intermediate Sun Gear
7Intermediate Sun Gear Spacer
8Output Sun Gear
9Output Shaft Thrust Bearing

Scheme 769

Scheme 769
CalloutComponent Name
1Input Carrier and Ring Gear Assembly
2Input Carrier Thrust Washer
3Input Carrier Internal Retaining Ring
4Input Carrier Assembly
5Intermediate and 2-6 Clutch Ring Gear

Scheme 770

Scheme 770
CalloutComponent Name
1Intermediate Carrier and Ring Gear Assembly
2Intermediate Carrier Internal Retaining Ring
3Intermediate Carrier Assembly
4Output Carrier and Low and Reverse Clutch Ring Gear

Scheme 771

Scheme 771
CalloutComponent Name
1Input Carrier Assembly
2Bushing, 53.0 mm (2.09 in) ID
3Input Carrier
4Input Carrier Spindle (4)
5Input Carrier Thrust Washer (4)
6Input Carrier Roller Bearing Assembly (8)
7Input Carrier Pinion Gear (4)
8Input Carrier Thrust Washer (4)

Scheme 772

Scheme 772
CalloutComponent Name
1Intermediate Carrier Assembly
2Intermediate Carrier
3Intermediate Carrier Bushing, 36.0 mm (1.42 in) ID
4Intermediate Carrier Thrust Washer (4)
5Intermediate Carrier Roller Bearing Assembly (8)
6Intermediate Carrier Pinion Gear (4)
7Intermediate Carrier Thrust Washer (4)
8Intermediate Carrier Spindle (4)

Scheme 773

Scheme 773
CalloutComponent Name
1Park Pawl Cam Guide
2Park Pawl Support Pin
3Park Pawl
4Park Pawl Return Spring
5Low and Reverse Clutch Piston Return Spring Assembly
6Bushing, 20 mm (0.8 in) ID
7Output Shaft, 2WD
8Output Shaft, 4WD
9Output Carrier Assembly

Scheme 774

Scheme 774
CalloutComponent Name
1Low and Reverse Clutch Housing Gasket
2Low and Reverse Clutch Housing, 2WD
3Low and Reverse Clutch Housing, 4WD
4Low and Reverse Clutch Housing Bolt, M10 x 1.5 x 40, Flanged Head (16)
5Prop Shaft Front Slip Yoke Oil Seal
6Output Nut, 4WD
7Rear Shipping Cover, 2WD
8Rear Shipping Cover, 4WD

Scheme 775

Scheme 775
CalloutComponent Name
1Output Carrier Assembly
2Output Carrier
3Output Carrier Thrust Washer (4)
4Output Carrier Roller Bearing Assembly (4)
5Output Carrier Pinon Gear (4)
6Output Carrier Thrust Washer (4)
7Output Carrier Planetary Spindle (4)
8Output Carrier Bearing Race

Scheme 776

Scheme 776
CalloutComponent Name
1Low and Reverse Clutch Housing Assembly, 2WD
2Low and Reverse Clutch Piston
3Low and Reverse Clutch Outer Piston Seal
4Low and Reverse Clutch Inner Piston Seal
5Internal Retaining Ring
6Output Carrier Support Bearing
7Output Speed Sensor Reluctor Wheel
8Low and Reverse Clutch Housing, 2WD
9Vehicle Speed Sensor Bolt, M6 x 1.0 x 13
10Sensor Shipping Cover
11Output Speed Sensor
12Vehicle Speed Sensor O-Ring
13Low and Reverse Clutch Selective Spacer
14Low and Reverse Clutch External Retaining Ring
15Output Shaft Support Bearing
16Low and Reverse Clutch Internal Retaining Ring

Scheme 777

Scheme 777
CalloutComponent Name
1Low and Reverse Clutch Housing Assembly, 4WD
2Low and Reverse Clutch Piston
3Low and Reverse Clutch Outer Piston Seal
4Low and Reverse Clutch Inner Piston Seal
5Internal Retaining Ring
6Output Carrier Support Bearing
7Output Shaft Bearing Spacer
8Low and Reverse Clutch Housing, 4WD
9Selective Spacer
10External Retaining Ring
11Output Shaft Support Bearing
12Internal Retaining Ring
13Output shaft Retaining Nut, 4WD

Scheme 778

Scheme 778
CalloutComponent Name
1Control Valve Body Assembly
2Shift Valve Body Assembly
3Separator Plate
4Main Valve Body Assembly
5Transmission Fluid Pressure (TFP) Switch
6Main Valve Body Assembly Bolt, M6 x 10 x 50, Flanged Head (23)
7Reverse Signal Pipe
8Reverse Signal Pipe Bolt, M6 x 10 x 50, Flanged Head
9Retaining Clip
10Modulated Main Valve Body
11Bolt, M6 x 10 x 65
12Bolt, M6 x 10 x 50
13O-Rings
14Modulated Main Pressure (MAIN MOD) Solenoid
156 Speed Pipe

Scheme 779

Scheme 779
CalloutComponent Name
1Shift Valve Body Assembly
2Retaining Clip
3Shift Solenoid 2 (SS2) Shift Plug
4SS2 Shift Spring
5SS2 Shift Valve
6Retaining Clip
7SS3 Shift Plug
8SS3 Shift Spring
9SS3 Shift Valve
10Retaining Clip
11SS1 Shift Spring
12SS1 Shift Valve
13Retaining Clip
14Control Main Spring
15Control Main Valve
16Shift Valve Body
17Shift Solenoid Retainer
18Shift Solenoid Screen
19SS1
20Shift Solenoid O-Ring
21Shift Solenoid O-Ring
22Manual Valve
23Manual Valve Pin

Scheme 780

Scheme 780
CalloutComponent Name
1Main Valve Body Assembly
2Retaining Clip
3Exhaust Pressure Regulator Valve Spring
4Exhaust Pressure Regulator Valve
5Retaining Clip
6Control Relief Spring
7Control Relief Valve
8Main Valve Body
9Locating Pin (4)
10Locating Pin
11Pressure Control Solenoid 1 (PCS1) Spring
12PCS1 Valve
13PCS1 Spring
14Trim Gain Valve
15PCS1
16PCS1 O-Ring
17PCS2 Spring
18PCS2 Valve
19Trim Gain Valve
20PCS2
21PCS2 O-Ring
22Shift Solenoid (SS) 3
23SS3 O-Ring
24SS3 O-Ring
25SS2
26SS2 O-Ring
27SS2 O-Ring
28Torque Converter Clutch Pressure Control Solenoid (TCC PCS) Spring
29TCC PCS Valve
31TCC PCS
32TCC PCS O-Ring
33TCC PCS O-Ring
34TCC PCS Retaining Bracket
35SS2 and SS3 Retainers (2)
36Accumulator Plug (2)
37Accumulator Spring (2)
38PCS1 and PCS2 Retaining Bracket

Scheme 781

Scheme 781: Automatic Transmission Electronic Component Views
CalloutComponent Name
1Transmission Control Module
2Transmission Control Module Connector
3Radiator Fan Shroud

Scheme 782

Scheme 782
CalloutComponent Name
1Turbine Sensor Harness Connector
2Power Take-Off (PTO) Connector
3Output Speed Sensor Harness Connector
4Transfer Case Selector Shift Control Switch
5Transmission Connector Harness
6Allison Transmission
7Engine Harness
8Automatic Transmission Input Shaft Speed (ISS) Sensor

Scheme 783

Scheme 783: Component Location
CalloutComponent Name
1Stator Shaft Bushing
2Oil Pump Bushing
31-2-3-4, 4-5-6 Clutch Piston Housing Bushing
4Oil Pump Cover Assembly Needle Bearing
5Turbine Shaft Bushing
61-2-3-4 Clutch Drive Hub Thrust Bearing
74-5-6 Clutch Hub Thrust Bearing
8Input Carrier Thrust Bearing
9Intermediate Carrier Bushing
10Intermediate Carrier Thrust Bearing
11Intermediate Carrier Thrust Bearing
12Output Sun Gear Thrust Bearing
13Output Carrier Needle Bearing
14Low and Reverse Clutch Housing Ball Bearing
15Output Shaft Bushing
16Input Carrier Bushing

Scheme 784

Scheme 784
CalloutComponent Name
1Stator Shaft Overlap Seal Ring
2Stator Shaft Overlap Seal Ring
3Oil Pump Lip Seal
4Input Speed Sensor O-Ring
5Pump Body O-Ring
64-5-6 Clutch Piston Inner Seal
74-5-6 Clutch Piston Outer Seal
81-2-3-4 Clutch Piston Assembly Outer Seal
91-2-3-4 Clutch Piston Inner Seal
101-2-3-4 Clutch Piston Outer Seal
111-2-3-4 Clutch Assembly Outer Seal
121-2-3-4 Clutch Balance Piston
13Turbine Speed Sensor O-Ring
143rd, 5th, and Reverse Clutch Piston Seal Assembly
152-6 Clutch Piston Seal Assembly
16Low and Reverse Clutch Piston Outer Seal
17Low and Reverse Clutch Piston Outer Seal
18Drain Plug O-Ring
19Stator Shaft Overlap Seal Ring (3)
20Transmission Internal Oil Filter Seal
21Turbine Shaft Seal, 2

Torque Converter Leak Test

Tools Required

  1. J 43763 Torque Converter Leak Test Plug. See «Special Tools»(ref-246434-S09644350722006122100000) .
  2. J 21369-F Torque Converter Leak Test Fixture. See «Special Tools»(ref-246434-S09644350722006122100000) .

Scheme 785

Scheme 785
  1. Position the torque converter (6) on the work table so that the pump hub is facing up.
  2. Move the nut (3) to the middle of the center body (1) of J 43763 . See «Special Tools»(ref-246434-S09644350722006122100000) .
  3. Install J 43763 into the torque converter hub. See «Special Tools»(ref-246434-S09644350722006122100000) .
  4. Install J 21369-F (3) onto the torque converter (8) and onto J 43763 (4). See «Special Tools»(ref-246434-S09644350722006122100000) .
  5. Firmly tighten the nut (6) in order to seal J 43763 into the torque converter.
  6. Firmly tighten the nut (5) in order to securely attach the torque converter to J 21369-F (3). See «Special Tools»(ref-246434-S09644350722006122100000) . Connect an air hose to the air fitting (1) of J 43763 . See «Special Tools»(ref-246434-S09644350722006122100000) .
  7. Pressurize the converter to 517 kPa (75 psi) maximum.
  8. Disconnect the air hose. Submerge the torque converter in water.
  9. Closely observe the torque converter for bubbles that indicate leakage. If the torque converter leaks, replace the torque converter.
  10. Push on the pressure relief valve (2) of J 43763 and release the air from the torque converter. See «Special Tools»(ref-246434-S09644350722006122100000) .
  11. Remove the J tools from the torque converter.

Scheme 786

Scheme 786: Torque Converter Inspection

Scheme 787

Scheme 787
  1. Measure the OD of torque converter hub (1) at dimension A, the bushing wear area. Torque Converter Hub OD: Dimension A must equal or exceed 58.250 mm (2.293 in).
  2. Measure the distance between the flats of the torque converter hub at dimension A. Torque Converter Hub Flats: Dimension A must equal or exceed 51.816 mm (2.040 in).
  3. Measure the OD of the torque converter cover pilot at dimension A. Torque Converter Pilot: Dimension A must equal or exceed 43.080 mm (1.696 in).

Scheme 788

Scheme 788: Transmission Fluid Inspection
  1. Remove the transmission fluid from torque converter (1).
  2. Examine the transmission fluid for the following. Evidence of foreign matter Metal particles Other contaminates
  3. If the torque converter is damaged, replace the torque converter.

Torque Converter End Play Inspection

Tools Required

  1. J 43764 Torque Converter End Play Gauge. See «Special Tools»(ref-246434-S09644350722006122100000) .
  2. J 5959 Dial Indicator Clamp and Adjuster. See «Special Tools»(ref-246434-S09644350722006122100000) .
  3. J 7872 Magnetic Base Dial Indicator

Scheme 789

Scheme 789
  1. Position the torque converter (3) on the work table so that the pump hub is facing up.
  2. Install J 43764 (2) into the torque converter hub. See «Special Tools»(ref-246434-S09644350722006122100000) .
  3. Hold J 43764 (2) in the converter hub and rotate the center screw until J 43764 is locked into the converter hub. See «Special Tools»(ref-246434-S09644350722006122100000) . Do not over tighten J 43764 . See «Special Tools»(ref-246434-S09644350722006122100000) .
  4. Assemble the following tools and install the tools onto the torque converter as shown: J 5959 (1). See «Special Tools»(ref-246434-S09644350722006122100000) . Extension rod (7) Clamp (6) J 7872 (4) Adaptor rod (5)
  5. Adjust the clamp (6) so that the dial indicator (1) firmly contacts the top of J 43764 (2). See «Special Tools»(ref-246434-S09644350722006122100000) .
  6. Set the J 5959 (1) to read zero. See «Special Tools»(ref-246434-S09644350722006122100000) .
  7. Lift J 43764 (2) upward as far as possible. See «Special Tools»(ref-246434-S09644350722006122100000) .
  8. Read the J 5959 (1) to determine torque converter end play. See «Special Tools»(ref-246434-S09644350722006122100000) .
  9. Compare the measured end play with the torque converter end play specifications. Refer to «End Play Specifications»(ref-246434-S26386571042006122100000) .
  10. If the measured torque converter end play exceeds the value listed, replace the torque converter.
  11. Remove the J tools from the converter housing.

Torque Converter Housing/Pump Assembly Removal

  1. Remove 18 bolts (1), one bolt (2), and one bolt (3).
  2. Attach a sling to the converter housing (1).
  3. Attach a hoist to the sling.
  4. Remove the converter housing/oil pump cover assembly (1) from the transmission case (4) and the turbine shaft (2).
  5. Place the converter housing/oil pump cover assembly on the work table.
  6. Remove the sling.
  7. Remove and discard the main housing/separator plate gasket (3).

Scheme 790

Scheme 790: 1-2-3-4 and 4-5-6 Clutch Housing Assembly Removal
  1. Lift and remove the 1-2-3-4, 4-5-6 clutch piston assembly (1).
  2. Remove thrust bearing assembly (1) from the 1-2-3-4, 4-5-6 clutch piston assembly or the input carrier assembly.

Torque Converter Housing/Pump Assembly Installation

Tools Required

  1. J 36850 Transjel® Lubricant
  2. J 45023 Control Main Filter Wrench. See «Special Tools»(ref-246434-S09644350722006122100000) .

Scheme 791

Scheme 791
  1. Install 2 M10 x 1.5 guide bolts (5) into the transmission case (4).
  2. Install a new torque converter housing to case gasket (3) onto the transmission case.
  3. Attach a sling to the converter housing (1).
  4. Attach a hoist to the sling.
  5. Align the converter housing (1) with the guide bolts (5).
  6. Apply J 36850 or equivalent lubrication to the 3 seal rings on the rear of the oil pump cover assembly.
  7. Lower the converter housing/oil pump cover assembly (1) over the turbine shaft (2) and onto the transmission case (4).
  8. Tap the converter housing until the converter housing seats on the transmission case.
  9. Remove the sling.
  10. Remove 2 guide bolts (5) from the transmission case.
  11. Install 18 bolts (1).
  12. Install one bolt (2).
  13. Install one bolt (3). Tighten: Tighten bolts (1, 2, 3) to 56 N.m (42 lb ft).
  14. Install the short-threaded end of the transmission external oil filter adapter (6) into the converter housing by hand. Tighten: Tighten the adapter to 30 N.m (22 lb ft.)
  15. Install the magnet (7) onto the transmission external oil filter adapter.
  16. Lubricate the gasket on the transmission external oil filter (8) with transmission fluid.
  17. Install the transmission external oil filter by hand until the gasket on the filter touches the converter housing.
  18. Using J 45023 (9) or by hand, turn the filter ONE FULL TURN ONLY. See «Special Tools»(ref-246434-S09644350722006122100000) .
  19. Install the line pressure test hole plug O-ring (4) onto the line pressure test hole plug (5).
  20. Install the plug. Tighten: Tighten the plug to 12 N.m (108 lb in).
  21. Install the torque converter housing access hole cover (10).
  22. If present, install the O-rings (3) onto the transmission oil cooler pipe connectors (2).
  23. Install 2 transmission oil cooler pipe connectors (2). Tighten: Tighten the connectors to 25 N.m (19 lb ft).

Scheme 792

Scheme 792: Low and Reverse Clutch Housing Selective Spacer Measurement - 2WD

Scheme 793

Scheme 793
  1. Position the transmission case so that the rear of the case is facing up.
  2. At dimension A, measure the distance from the rear face of the low and reverse clutch housing (1) to the rear face of output speed sensor (OSS) reluctor wheel (2).
  3. At dimension B, measure the distance from the rear face of the low and reverse clutch housing (3) to the rear face of the retaining ring (4).
  4. Calculate Dimension C by subtracting Dimension B from Dimension A.
  5. Select the appropriate selective spacer (1) based upon Dimension C. Refer to «Selective Components Specifications»(ref-246434-S22577166062006122100000) .
  6. Install the selective spacer (1) onto the output shaft (2).

Scheme 794

Scheme 794: Low and Reverse Clutch Housing Selective Spacer Measurement - 4WD

Scheme 795

Scheme 795
  1. Position the transmission case so that the rear of the case is facing up.
  2. At dimension A, measure the distance from the rear face of the low and reverse clutch housing (1) to the rear face of the bearing spacer (2).
  3. At dimension B, measure the distance from the rear face of the low and reverse clutch housing (3) to the rear face of the retaining ring (4).
  4. Calculate Dimension C by subtracting Dimension B from Dimension A.
  5. Select the appropriate selective spacer (1) based upon Dimension C. Refer to «Selective Components Specifications»(ref-246434-S22577166062006122100000) .
  6. Install the selective spacer (1) onto the output shaft (2).

Torque Converter Assembly Installation

Tools Required

  1. J 46409 Torque Converter Lifting Handles. See «Special Tools»(ref-246434-S09644350722006122100000) .
  2. J 21366 Torque Converter Retaining Strap
  1. If not installed, install J 46409 , positioned 180 degrees apart, into 2 threaded bosses on the torque converter (1). See «Special Tools»(ref-246434-S09644350722006122100000) .
  2. Raise the torque converter (1) over the torque converter housing.
  3. Lower the torque converter (1) over the turbine shaft and the stator shaft and into the oil pump assembly.
  4. Make sure the torque converter is seated in the oil pump assembly.
  5. Remove the J 46409 . See «Special Tools»(ref-246434-S09644350722006122100000) .
  6. Install the J 21366 to retain the torque converter to the transmission.