GM Service Manual Online
For 1990-2009 cars only

Hydra-Matic 4T60-E Shift Speed Chart

Transmission Model

6ACW

6ASW

6BXW

6YLW

6YRW

Vehicle Series

C,H

C,H

H

C,H

H

Engine Displacement

3.8L

3.8L

3.8L

3.8L

3.8L

Engine RPO Code

L36

L36

L36

L67

L67

Engine VIN Code

K

K

K

1

1

Overall Axle Ratio

3.06

2.84

3.06

2.93

2.93

Final Drive Ratio

3.06

2.84

3.06

3.29

3.29

Drive/Driven Sprocket Teeth

35/35

35/35

35/35

37/33

37/33

Minimum Throttle 1-2 Upshift

11

11

11

11

11

Wide Open Throttle 1-2 Upshift

46

52

46

45

45

Minimum Throttle 2-3 Upshift

20

20

20

21

21

Wide Open Throttle 2-3 Upshift

89

96

89

85

85

Minimum Throttle 3-4 Upshift

45

45

45

47

47

Wide Open Throttle 3-4 Upshift

N/A

N/A

N/A

N/A

N/A

Minimum TCC Apply - Third Gear

36

36

36

40

40

Minimum TCC Apply - Fourth Gear

45

45

45

47

47

N/V Ratio - Third Gear/TCC On

41

38

40

39

39

N/V Ratio - Fourth Gear/TCC On

29

27

28

27

27