GM Service Manual Online
For 1990-2009 cars only

Shift Speed

 

1-2 Upshift @ +/- 250 RPM Output Shaft Speed

2-3 Upshift @ +/-250 RPM Output Shaft Speed

3-4 Upshift @ +/- 250 RPM Output Shaft Speed

1-2 Upshift @ WOT +/- 250 RPM, Output Shaft Speed

2-3 Upshift @ WOT +/- 250 RPM, Output Shaft Speed

WOT 3-1 Downshift +/- 100 RPM, Output Shaft Speed

MIN TCC Apply @ 12% (RPM)

% of TPS

12

25

50

12

25

50

12

25

50

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Trans Cal

Body

Axle

--

--

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4.2L (LL8)

A

S/T

3.42

485

670

1340

800

1250

2500

1200

1910

3625

2000

3750

1550

1760

B

S/T

3.73

485

670

1340

800

1250

2500

1200

1910

3625

2000

3750

1550

1760

C

S/T

4.10

485

670

1340

800

1250

2500

1200

1910

3625

2000

3750

1550

1760

5.3L (LM4)

D

S/T

3.42/3.73

430

650

1100

815

1080

1800

1200

1640

2700

1830

3190

1360

1200