GM Service Manual Online
For 1990-2009 cars only

Name

Allison 1000 Series

1st Range Ratio

3.10:1

2nd Range Ratio

1.81:1

3rd Range Ratio

1.41:1

4th Range Ratio

1.00:1

5th Range Ratio

0.71:1

Reverse Range Ratio

4.49:1

Transmission Fluid Type

DEXRON® III

Maximum Gross Combined Weight (GCW)

11 800 kg (26,000 lb)*

Maximum Gross Vehicle Weight (GVW)

9 000 kg (19,850 lb)*

* Or Vehicle Manufacturers Chassis Rating, whichever is less

Transmission General Specifications F Trim Solenoid

F Trim Solenoid Specifications

Sump Temperature

Resistance

Degrees C

Degrees F

Ohms

0

32

9.5

20

68

10.5

40

104

11.5

Transmission General Specifications C, D, E Solenoids

C, D, and E On/Off Shift Solenoid Specifications

Sump Temperature

Resistance

Degrees C

Degrees F

Ohms

0

32

20.0

20

68

22.0

40

104

24.5

Transmission General Specifications Wear Limits

Torque Converter Wear Limits

Part Measured

Specification

Metric

English

Torque Converter Pump Hub Minimum OD

58.250 mm

2.2933 in

Torque Converter Pump Hub Minimum Distance Between Flats

51.816 mm

2.0400 in

Torque Converter Cover Pilot, Minimum OD

43.080 mm

1.6960 in

Ground Sleeve, Maximum ID at Turbine Shaft Sealring Bore

45.450 mm

1.7894 in

Ground Sleeve, Maximum Spline Wear

No visible wear mm

No visible wear

Ground Sleeve Bushing, Maximum ID

33.850 mm

1.3326 in

Front Support Thrust Washer Thickness

1.490 mm

0.0590 in

Rotating Clutch Housing Bushing, Maximum ID

78.170 mm

3.0776 in

Rotating Clutch Housing Rotating Seal Bore, Maximum ID

74.050 mm

2.9154 in

C1 Friction Plates Maximum Cone

0.255 mm

0.0100 in

C1 Friction Plates Minimum Thickness

2.375 mm

0.0935 in

C1 Friction Plates Minimum Oil Groove Depth

0.200 mm

0.0079 in

C1 Steel Reaction Plate Maximum Cone

0.200 mm

0.0079 in

C1 Steel Reaction Plate Minimum Thickness

2.135 mm

0.0841 in

C1 Backplate Maximum Cone

0.000 mm

0.0000 in

C2 Friction Plates Maximum Cone

0.225 mm

0.0089 in

C2 Friction Plates Minimum Thickness

2.375 mm

0.0935 in

C2 Friction Plates Minimum Oil Groove Depth

0.200 mm

0.0079 in

C2 Steel Reaction Plate Maximum Cone

0.240 mm

0.0094 in

C2 Steel Reaction Plate Minimum Thickness

2.135 mm

0.0841 in

Turbine Shaft Bushing, Maximum ID

20.150 mm

0.7933 in

Turbine Shaft Thrust Washer

2.590 mm

0.102 in

C3/C4 Friction Plate Maximum Cone

0.225 mm

0.0089 in

C3/C4 Friction Plate Minimum Thickness

2.375 mm

0.0935 in

C3/C4 Friction Plate Minimum Oil Groove Depth

0.200 mm

0.0079 in

C3/C4 Steel Reaction Plate Maximum Cone

0.400 mm

0.0157 in

C3/C4 Steel Reaction Plate Minimum Thickness

2.440 mm

0.0961 in

C3/C4 Spring Plate Maximum Cone

0.400 mm

0.0157 in

C3/C4 Spring Plate Minimum Thickness

3.110 mm

0.1224 in

C3 Backplate Maximum Cone

0.000 mm

0.0000 in

C3 Backplate Minimum Thickness

15.325 mm

0.6033 in

Thrust Plate Inner Rim, Minimum Thickness

3.000 mm

0.1181 in

C4 Backplate Maximum Cone

0.000 mm

0.0000 in

C4 Backplate Minimum Thickness

15.400 mm

0.6063 in

C5 Friction Plate Maximum Cone

0.225 mm

0.0089 in

C5 Friction Plate Minimum Thickness

2.375 mm

0.0935 in

C5 Friction Plate Minimum Oil Groove Depth

0.200 mm

0.0079 in

C5 Steel Reaction Plate Maximum Cone

0.295 mm

0.0116 in

C5 Backplate Maximum Cone

0.000 mm

0.0000 in

C5 Backplate Minimum Thickness

17.900 mm

0.704 in

Main Housing Clutch Plate, Spline Wear (Notching)

1.150 mm

0.0450 in

P1 Ring Gear, Maximum Spline Wear (Notching)

0.130 mm

0.0051 in

P1 Carrier Assembly Bushing, Maximum ID

50.690 mm

1.9957 in

P1 Carrier Assembly Thrust Washers Thickness

1.490 mm

0.0590 in

P1 Carrier Assembly Pinion Maximum End Play

1.010 mm

0.0400 in

P2 Ring Gear, Maximum Spline Wear (Notching)

0.130 mm

0.0051 in

P2 Ring Gear Thrust Washer Thickness

1.490 mm

0.0590 in

P2 Carrier Assembly Pinion Maximum End Play

1.010 mm

0.0400 in

P2 Carrier Bushing, Maximum ID

36.575 mm

1.4400 in

P3 Ring Gear, Maximum Spline Wear (Notching)

0.130 mm

0.0051 in

P3 Carrier Assembly Pinion Maximum End Play

1.010 mm

0.0400 in

Main Shaft Pilot, Minimum OD (Turbine Shaft and Output Shaft)

19.987 mm

0.7869 in

Main Shaft Journal, Minimum OD (P2 Carrier Bushing)

36.405 mm

1.4333 in

Output Shaft Bushing (2WD and 4WD), Maximum ID

20.150 mm

0.7933 in

Output Shaft (2WD and 4WD), Minimum Bearing Surface OD

44.978 mm

1.7708 in

Parking Pawl Gear Wear

0.000 mm

0.0000 in

Output Yoke, Output Seal Surface, Minimum OD

65.080 mm

2.5622 in

Transmission General Specifications Transmission Weight

Transmission Weight

Name

Allison

Transmission Weight Dry

150 kg (330 lb)

Transmission Weight Wet

161.1 kg (353.0 lb)

Transmission General Specifications Transmission Gear Ratio

Name

Allison 1000 Series

1st Range Ratio

3.10:1

2nd Range Ratio

1.81:1

3rd Range Ratio

1.41:1

4th Range Ratio

1.00:1

5th Range Ratio

0.71:1

Reverse Range Ratio

4.49:1