GM Service Manual Online
For 1990-2009 cars only

4.3L (L99)

 

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

2-3 Shift @ +/- 200 RPM Output Shaft Speed

3-4 Shift @ +/- 150 RPM Output Shaft Speed

3-1 @ +/- 100 RPM Output Shaft Speed

3-2 @ +/- 100 RPM Output Shaft Speed

3-1 Wide Open Throttle Shift

2-3 Wide Open Throttle Shift

% of TPS

12

25

50

12

25

50

12

25

50

 

 

 

 

Trans Cal

Axle

 

 

 

A

2.93

431

574

1005

754

969

1615

1041

1328

N/A

N/A

646

1292

N/A

B

3.23

491

736

1186

859

1186

1963

1186

1840

N/A

N/A

777

1268

N/A

5.7L (LT1)

 

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

2-3 Shift @ +/- 200 RPM Output Shaft Speed

3-4 Shift @ +/- 150 RPM Output Shaft Speed

3-1 @ +/- 100 RPM Output Shaft Speed

3-2 @ +/- 100 RPM Output Shaft Speed

3-1 Wide Open Throttle Shift

2-3 Wide Open Throttle Shift

% of TPS

12

25

50

12

25

50

12

25

50

 

 

 

 

Trans Cal

Axle

 

 

 

A

2.56

412

602

1046

697

1078

1902

919

1426

N/A

476

N/A

951

N/A

B

2.93

412

602

1046

697

1078

1902

919

1426

N/A

444

N/A

951

N/A

C

3.08

496

724

1220

801

1220

2135

1106

1716

4576

N/A

763

1296

N/A