GENERAL MOTORS 4L60E/65E/70E · GENERAL MOTORS Pump Cover 4L60E/65E/70E Pump cover kits: 1998-2005:...

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© 2007 ATRA. All Rights Reserved.

The 2005 and 2006 ATRA seminars covered the changes involved with the addi-tion of the input speed sensor in the 4L60E/65E and 4L70E applications (RPO’sM30,M32, M33, M70). The input speed sensor was not used on all 2006-2007applications so some confusion may occur regarding build combinations for theseproducts. Some of the parts from the ISS equipped applications and a Non ISSequipped applications cannot be intermixed.

A failure to identify the build combination you are working with may result in linepressure, TCC and/or Clutch apply/release/cross leak concerns. Five designvariations have occurred between Non ISS applications and the final fully func-tional ISS applications. These changes include the following:

• Redesigns of the turbine shaft—Repositioning of the seal rings on the shaft,adding a ISS toothed wheel.

• Redesign of the pump cover- Updating the passage design and passageposition in the stator support sleeve. Adding a boss to the cover for the ISS.

• Shortening the P/R valve train to make room for the input speed sensorwiring and connector.

• Updating the wiring harness for the input speed sensor.

• Adding DTC’s for ISS diagnostics.

4L60E/65E/70EInput Speed Sensor

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4L60E/65E/70EInput Speed Sensor

Design Variation Turbine Shaft:

Four NON ISS shaft sizes are available they are:245mm/258mm shaft (Part # 17803688)280mm/300mm shaft (Part # 17803687)300mm HD/300mm M70 ( Part #17803686)258mm PHT (Part # 17803685)

Three ISS equipped shafts are available, they are:245mm/258mm (Part #24232438)280mm/300mm (Part # 24230653)300mm HD/M70 (Part #24230654)

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The design of the shaft can be identified by the ID marks on the shaft. The IDmark is simply a 9.5mmX.5mm groove that located on the shaft. Some shaftshave ID marks while others do not.

Pump Cover: 5 pump covers are available, they are:

1997-2005 model: No input sensor boss, used 1st design stator support bushingand 1st design P/R valve train.

4L60E/65E/70EPump Cover

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2005 I model: No input sensor boss, used 1st design stator support bushing and2nd design P/R valve train.

2005 I model: Includes a input speed sensor boss, but the boss is not drilled, 1st

design stator support sleeve and 2nd design P/R valve train.

Pump Cover

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4L60E/65E/70EPump Cover (continued)

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Pump Cover

4L60E/65E/70E

Pump cover kits:1998-2005: 12491417, 124914212006 and later Non PHT: 24236486, 242364892006/07 PHT: 24239202

Reverse boost valve kits:2005 and earlier (Long valve train): 24234396 regular, 24234397 High PerfShort valve train 24234396 regular, 24234397 High Perf

2006: The input speed sensor boss was drilled on those models that used an ISS.A 2nd design stator support sleeve and a 2nd design P/R valve train were used.This combination requires the ISS shaft design or a shaft design that relocatesthe turbine seal ring position.

2006 and later: All models of pumps use the input speed sensor boss and all ofthe bosses are drilled. If the ISS is not used a rubber plug will be used in the ISShole. A 2nd design stator support sleeve and a 2nd design P/R valve train wereused. This combination requires the ISS shaft design or a shaft design that relo-cates the turbine seal ring position.

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Pump Cover

4L60E/65E/70E(continued)

GENERAL MOTORS 4L60E/65E/70E · GENERAL MOTORS Pump Cover 4L60E/65E/70E Pump cover kits: 1998-2005:...

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