GM Service Manual Online
For 1990-2009 cars only
Table 1: Clutch
Table 2: Stator Shaft (404)
Table 3: Reverse Shift Fork (924)
Table 4: Regulator Valve Body (422)
Table 5: Main Control Valve Body (203)
Table 6: 1st/2nd Clutch Shaft, Apply Fluid Collar (129)
Table 7: Mainshaft (640)
Table 8: Output Shaft (535)
Table 9: 1st/2nd Clutch Shaft (755)
Table 10: 3rd Clutch Shaft (830)
Table 11: Reverse Idler Gear (533)
Table 12: Main Control Valve Body Springs (250)
Table 13: Servo Control Valve Body Springs (325)
Table 14: Regulator Valve Body Springs (430)
Table 15: Accumulator Valve Body Springs (495)
Table 16: Front Differential Assembly (919)
Table 17: Front Differential Pinion Gear (956)

Clutch

Application

Standard or New

Service Limit

Metric

English

Metric

English

Clutch Backing-Plate-to-Top-Disc Clearance

  • 1st Clutch

--

1.20-1.35 mm

0.047-0.053 in

  • 2nd Clutch

--

1.10-1.15 mm

0.039-0.045 in

  • 3rd Clutch

--

0.8-0.9 mm

0.031-0.035 in

  • 4th, 5th Clutch

--

0.65-0.75 mm

0.025-0.030 in

  • 1st-Hold Clutch

--

0.6-1.0 mm

0.024-0.039 in

Clutch Plate Thickness

  • 1st Clutch

1.6 mm

0.06 in

When discolored

  • 2nd Clutch

1.8 mm

0.07 in

When discolored

  • 3rd, 4th, 5th Clutch

2.0 mm

0.079 in

When discolored

  • 1st-Hold Clutch

1.8 mm

0.07 in

When discolored

Clutch Return Spring Free Length

  • 1st Clutch

68.3 mm

2.69 in

66.3 mm

2.61 in

  • 2nd Clutch

48.3 mm

1.90 in

46.3 mm

1.82 in

  • 3rd Clutch

52.0 mm

2.05 in

50.0 mm

1.97 in

  • 4th Clutch

37.7 mm

1.48 in

35.7 mm

1.41 in

  • 5th Clutch

37.4 mm

1.47 in

35.4 mm

1.39 in

Stator Shaft (404)

Application

Standard or New

Service Limit

Metric

English

Metric

English

I.D. at Mainshaft Sealing Ring Contact Area

31.000-31.025 mm

1.220-1.221 in

31.05 mm

1.222 in

I.D. at Needle Bearing Contact Area

  • Automatic Transmission Fluid Pump Side

31.000-31.025 mm

1.220-1.221 in

 
  • Torque Converter Side

27.000-27.021 mm

1.063-1.064 in

When worn or damaged

Reverse Shift Fork (924)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Reverse Shift Fork

5.90-6.00 mm

0.220-0.236 in

5.4 mm

0.213 in

Regulator Valve Body (422)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Mainshaft Sealing Ring Contact I.D.

31.000-31.025 mm

1.220-1.221 in

31.05 mm

1.222 in

Shift Fork Shaft Bore I.D.

14.000-14.010 mm

0.5512-0.5516 in

--

Shift Fork Shaft/Secondary Valve

37.000-37.039 mm

1.4567-1.4582 in

37.045 mm

1.4585 in

Main Control Valve Body (203)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Third Shaft Sealing Ring Contact I.D.

35.000-35.025 mm

1.3780-1.3789 in

35.05 mm

1.3799 in

1st/2nd Clutch Shaft, Apply Fluid Collar (129)

Application

Standard or New

Service Limit

Metric

English

Metric

English

1st/2nd Clutch Shaft Sealing Ring Contact

29.000-29.021 mm

1.1417-1.1426 in

29.05 mm

1.1437 in

Mainshaft (640)

Application

Standard or New

Service Limit

Metric

English

Metric

English

5th Gear Axial Clearance

0.10-0.22 mm

0.004-0.009 in

--

5th Gear Collar Diameter at Needle Bearing Contact Area

39.975-39.991 mm

1.5738-1.5744 in

When worn or damaged

5th Gear Collar Flange Thickness

5.15-5.30 mm

0.203-0.209 in

When worn or damaged

5th Gear Collar Length

48.7-48.8 mm

1.917-1.921 in

--

5th Gear I.D.

46.000-46.016 mm

1.8110-1.8116 in

When worn or damaged

Diameter at Stator Shaft Needle Bearing Contact Area

22.984-23.000 mm

0.9049-0.9055 in

When worn or damaged

Sealing Ring Groove Width

2.025-2.060 mm

0.080-0.081 in

2.08 mm

0.082 in

Sealing Ring Thickness

1.90-1.96 mm

0.074-0.077 in

1.85 mm

0.073 in

Output Shaft (535)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Axial Clearance of Gears

  • 2nd Driven Gear

0.005-0.040 mm

0.0002-0.0016 in

--

  • 5th Driven Gear

0.12-0.27 mm

0.0047-0.0106 in

--

  • 1st/2nd Idler Gear

0.005-0.040 mm

0.0002-0.0016 in

--

  • Reverse Driven Gear

0.10-0.25 mm

0.0039-0.0098 in

--

Cotter Thickness

1.99-2.02 mm

0.078-0.080 in

--

Diameter at Bearing Contact Area

  • 5th gear

34.975-34.991 mm

1.3770-1.3776 in

When worn or damaged

  • Torque Converter Housing Bearing

40.505-40.515 mm

1.5947-1.5951 in

When worn or damaged

Diameter of 2nd Gear at Needle Bearing Contact Area

56.975-56.991 mm

2.2431-2.2437 in

When worn or damaged

I.D of Gears

  • 5th Gear

41.000-41.0016 mm

1.6142-1.6148 in

When worn or damaged

  • Idler Gear

65.000-65.019 mm

2.5590-2.5598 in

When worn or damaged

  • Reverse Gear

46.000-46.016 mm

1.8110-1.8116 in

When worn or damaged

Reverse Gear Collar O.D.

39.979-40.000 mm

1.5740-1.5748 in

When worn or damaged

Reverse Selector Hub O.D.

55.885-55.900 mm

2.200-2.201 in

When worn or damaged

Thrust Washer Thickness - 35 x 47 mm

5.97-6.00 mm

0.2350-0.2362 in

When worn or damaged

1st/2nd Clutch Shaft (755)

Application

Standard or New

Service Limit

Metric

English

Metric

English

1st Gear Collar Length

63.3-63.4 mm

2.4921-2.4961 in

--

ATF Feed Pipe O.D.

  • 1st Clutch

11.47-11.48 mm

0.4516-0.4520 in

11.45 mm

0.4508 in

  • 1st Hold Clutch

5.97-5.98 mm

0.2350-0.2354 in

5.95 mm

0.2343 in

Axial Clearance of Gears

  • 1st Drive Gear

0.085-0.130 mm

0.0033-0.0051 in

--

  • 2nd Gear

0.06-0.23 mm

0.0024-0.0091 in

--

Diameter at Bearing Contact Area

  • 2nd gear

43.986-43.999 mm

1.7317-1.7322 in

When worn or damaged

  • Torque Converter Housing Bearing

32.002-32.015 mm

1.2599-1.2604 in

When worn or damaged

  • Torque Converter Housing Bearing - Shaft End Side

28.592-28.608 mm

1.1257-1.1263 in

When worn or damaged

Diameter of 1st Gear Collar at Needle Bearing Contact Area

38.975-38.991 mm

1.5344-1.5351 in

When worn or damaged

Feed Pipe Bushing I.D.

  • 1st Clutch

11.518-11.530 mm

0.4535-0.4539 in

11.545 mm

0.4545 in

  • 1st Hold Clutch

6.018-6.030 mm

0.2369-0.2374 in

6.045 mm

0.2380 in

I.D. of Gears

  • 1st Gear

44.000-44.016 mm

1.7323-1.7329 in

When worn or damaged

  • 2nd Gear

50.00-50.02 mm

1.9685-1.9693 in

When worn or damaged

Sealing Ring Groove Width

2.025-2.060 mm

0.080-0.081 in

2.08 mm

0.082 in

Sealing Ring Thickness

1.91-1.97 mm

0.075-0.078 in

1.86 mm

0.073 in

3rd Clutch Shaft (830)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Axial Clearance of 3rd Gear

0.005-0.045 mm

0.0002-0.0018 in

--

Cotter Thickness

2.99-3.02 mm

0.1177-0.1189 in

--

I.D. of 3rd Gear

36.000-36.016 mm

1.4173-1.4179 in

When worn or damaged

Sealing Ring Groove Width

2.025-2.060 mm

0.080-0.081 in

2.08 mm

0.082 in

Sealing Ring Thickness

1.89-1.95 mm

0.0744-0.0768 in

1.84 mm

0.0724 in

Reverse Idler Gear (533)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Axial Clearance

0.07-0.38 mm

0.003-0.015 in

--

Gear Shaft O.D.

13.99-14.00 mm

0.5508-0.5512 in

When worn or damaged

I.D. of Reverse Idler Gear

18.007-18.020 mm

0.7089-0.7094 in

When worn or damaged

I.D. of Transmission Housing at Gear Shaft Contact Area

14.006-14.024 mm

0.5514-0.5521 in

--

Thrust Washer Thickness

  • Holder Side

0.97-1.05 mm

0.038-0.041 in

--

  • Transmission Housing

0.97-1.05 mm

0.038-0.041 in

--

Main Control Valve Body Springs (250)

Application

Standard or New

Wire Diameter

O.D.

Free Length

No. of Coils

Cooler Check Valve Spring

0.6 mm (0.024 in)

5.8 mm (0.228 in)

14.5 mm (0.571 in)

6.8

CPC Valve C Spring

0.7 mm (0.028 in)

6.1 mm (0.240 in)

17.8 mm (0.701 in)

7.9

Lock-up Shift Valve Spring

0.9 mm (0.035 in)

7.6 mm (0.299 in)

63.0 mm (2.48 in

22.4

Lock-Up Timing Valve Spring

0.65 mm (0.026 in)

6.6 mm (0.260 in)

34.8 mm (1.370 in)

15.6

Lubrication Control Valve Spring

0.7 mm (0.028 in)

7.7 mm (0.303 in)

28.8 mm (1.134 in

10.4

Modulator Valve Spring

1.6 mm (0.063 in)

10.4 mm (0.409 in)

33.5 mm (1.319 in)

9.8

Relief Valve Spring

1.1 mm (0.043 in)

8.6 mm (0.339 in)

32.1 mm (1.264 in)

11.2

Shift Valve A Spring

0.8 mm (0.031 in)

6.6 mm (0.260 in)

49.1 mm (1.933 in)

21.7

Shift Valve B Spring

0.8 mm (0.031 in)

6.6 mm (0.260 in)

49.1 mm (1.933 in)

21.7

Shift Valve D Spring

0.7 mm (0.028 in)

6.6 mm (0.260 in)

32.3 mm (1.268 in)

13.4

Shift Valve E Spring

0.8 mm (0.031 in)

7.1 mm (0.280 in)

49.0 mm (1.929 in)

17.2

Torque Converter Check Valve Spring

1.1 mm (0.043 in)

8.6 mm (0.339 in)

35.0 mm (1.378 in)

12.6

Servo Control Valve Body Springs (325)

Application

Standard or New

Wire Diameter

O.D.

Free Length

No. of Coils

CPC Valve A Spring

0.7 mm (0.028 in)

6.1 mm (0.240 in)

17.8 mm (0.701 in)

7.9

Kick-Down Valve Spring

0.8 mm (0.031 in)

6.6 mm (0.26 in)

49.1 mm (1.933 in)

21.7

Reverse CPC Valve Spring

0.7 mm (0.028 in)

6.1 mm (0.240 in)

17.8 mm (0.701 in)

7.9

Servo Control Valve Spring

0.7 mm (0.028 in)

6.6 mm (0.260 in)

35.7 mm (1.406 in)

17.2

Shift Valve C Spring

0.8 mm (0.031 in)

6.6 mm (0.260 in)

49.1 mm (1.933 in)

21.7

Regulator Valve Body Springs (430)

Application

Standard or New

Wire Diameter

O.D.

Free Length

No. of Coils

3rd Accumulator Spring

3.1 mm (0.122 in)

19.6 mm (0.772 in)

41.4 mm (1.63 in)

5.5

Lock-Up Control Valve Spring

0.7 mm (0.028 in)

6.6 mm (0.26 in)

42.9 mm (1.689 in)

14.2

0.8 mm (0.031 in)

6.6 mm (0.26 in)

44.3 mm (1.744 in)

25.5

Regulator Valve Spring A

1.9 mm (0.075 in)

14.7 mm (0.579 in)

80.6 mm (3.173 in)

16.1

Regulator Valve Spring B

1.4 mm (0.055 in)

8.8 mm (0.346 in)

44.0 mm (1.7321 in)

12.0

Stator Reaction Spring

5.5 mm (0.217 in)

37.4 mm (1.472 in)

30.3 mm (1.193 in)

2.1

Accumulator Valve Body Springs (495)

Application

Standard or New

Wire Diameter

O.D.

Free Length

No. of Coils

1st Accumulator Spring A

2.2 mm (0.087 in)

17.7 mm (0.697 in)

77.6 mm (3.055 in)

12.1

1st Accumulator Spring B

2.0 mm (0.079 in)

11.1 mm (0.437 in)

49.0 mm (1.929 in)

10.0

1st Hold Accumulator Spring

2.0 mm (0.079 in)

13.1 mm (0.516 in)

42.9 mm (1.689 in)

9.8

2nd Accumulator Spring

3.1 mm (0.122 in)

19.6 mm (0.772 in)

53.4 mm (2.102 in)

7.5

4th Accumulator Spring

3.0 mm (0.118 in)

19.6 mm (0.772 in)

45.3 mm (1.783 in)

6.4

5th Accumulator Spring A

2.2 mm (0.087 in)

16.4 mm (0.646 in)

75.7 mm (2.980 in)

14.2

5th Accumulator Spring B

2.0 mm (0.079 in)

10.0 mm (0.394 in)

45.5 mm (1.791 in)

11.6

Front Differential Assembly (919)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Automatic Transmission

18.000-18.025 mm

0.7087-0.7096 in

--

Carrier-to-Output Shaft Clearance

18.000-18.025 mm

0.7087-0.7096 in

0.13 mm

0.005 in

Carrier-to-Intermediate Shaft Clearance

0.045-0.06 mm

0.002-0.004 in

--

Tapered Roller Bearing Staring Torque New Bearing 3.9-5.1 N·m (35-45 lb in)

0.080-0.126 mm

0.003-0.005 in

--

--

Carrier-to-Pinion Shaft Clearance

0.013-0.054 mm

0.0005-0.0021 in

0.1 mm

0.004 in

Driveshaft Contact Area I.D.

30.025-30.055 mm

1.182-1.183 in

--

Front Differential Pinion Gear (956)

Application

Standard or New

Service Limit

Metric

English

Metric

English

Backlash

0.175-0.275 mm

0.007-0.011 in

--

I.D.

18.042-18.066 mm

0.7103-0.7113 in

--

Pinion Gear-to-Pinion Shaft Clearance

0.055-0.095 mm

0.0022-0.0037 in

0.12 mm

0.005 in