GM Service Manual Online
For 1990-2009 cars only

Transmission General Specifications Unit Repair

Intermediate Band Apply Pin

Length

Identification

Short

2 Grooves

Medium

1 Groove

Long

0 Grooves

Transmission General Specifications (3T40)

Name

Hydra-matic 3T40

RPO Codes

MD9

Production Location

Ypsilanti, Michigan

Vehicle Platform (Engine/Transmission)

Usage

J

Transmission Drive

Transverse Mounted Front Wheel Drive

Maximum Engine Torque

270 N·m (200 lb ft)

1st Gear Ratio

2.840:1

2nd Gear Ratio

1.600:1

3rd Gear Ratio

1.000:1

Reverse

2.067:1

Torque Converter Size (Diameter of Torque Converter Turbine)

245 mm

Pressure Taps

Line Pressure

Governor Pressure

Transmission Fluid Type

DEXRON® III

Transmission Type: 3

Three Forward Gears

Transmission Type: T

Transverse Mount

Transmission Type: 40

Product Series

Position Quadrant

P, R, N, D, 2, 1

Case Material

Die Cast Aluminum

Transmission Weight Dry

65.7 kg (144 lbs)

Transmission Weight Wet

73.1 kg (161 lbs)

Maximum Trailer Towing Capacity

487 kg (1,000 lbs)

Maximum Gross Vehicle Weight (GVW)

2,318 kg (5,100 lbs)

Ratios

Chain

Final Drive

Effective (Overall)

33/37

2.84

3.18

33/37

3.06

3.43

33/37

3.33

3.73

35/35

2.84

2.84

35/35

3.06

3.06

35/35

3.33

3.33

37/33

2.84

2.53

37/33

3.06

2.73

37/33

3.33

2.97