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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4.2 L (LL8)

A

S/T

3.42

483

665

1330

806

1249

2499

1209

1914

3627

1813

3466

1572

1773

B

S/T

3.73

483

659

1363

813

1253

2506

1209

1934

3649

1824

3473

1583

1780

C

S/T

4.10

483

676

1304

797

1256

2487

1207

1908

3623

1811

3454

1546

1763