GM Service Manual Online
For 1990-2009 cars only

Transmission Model

9AHW

Vehicle Series

W

Engine Displacement

3.1L

Engine RPO Code

L82

Engine VIN Code

M

Overall Axle Ratio

3.29

Final Drive Ratio

3.29

Drive/Driven Sprocket Teeth

35/35

VSS Rotor Teeth

30

Final Drive Assembly

STD

Output Shaft

STD

Torque Converter K-factor

180

Converter Clutch

ECCC

Case Side Cover Pan

SSC

SSC Mount Bolt Pattern

4 BOLT

Transmission Vent Assembly

CAP

Temperature Sensor

391

1-2 Accumulator Valve (Primary)

INVERT

1-2 Accumulator Piston

136C

1-2 Accumulator Spring(s)

139A,B

2-3 Accumulator Piston

136A

2-3 Accumulator Spring(s)

138A,B

3-4 Accumulator Spring(s)

423,4

Legend:

  • FP = Fine Pitch
  • HD = Heavy Duty
  • N/A = Not Available
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • STEEL = Stamped Steel Side Cover Pan
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings)

This table does not identify all unique build items and this table may be subject to change.