GM Service Manual Online
For 1990-2009 cars only
Table 1: 4-5-6 Clutch Piston Installation
Table 2: 4-5-6 Clutch Dam Installation
Table 3: 4-5-6 Clutch Plates Installation
Table 4: 3-5 Reverse Clutch Plates Installation
Table 5: Piston and Reluctor Wheel Installation
Table 6: 35R and 456 Clutch Piston Air Check

4-5-6 Clutch Piston Installation


Object Number: 1737926  Size: MF

4-5-6 Clutch Piston Installation

Callout

Component Name

1

4-5-6 Clutch Piston Inner Seal

2

4-5-6 Clutch Piston Outer Seal (Rounded)

3

4-5-6 Clutch Piston Outer Seal (Stepped) (Orange)

4

4-5-6 Clutch Piston

Tip
DT-47859 prevents the piston seal lip from damage during installation. Apply a thin coat of ATF to the I.D. of DT-47859 to ease the installation of the piston.

Special Tool

DT-47859 Piston Outer Seal Protector

4-5-6 Clutch Dam Installation


Object Number: 1737931  Size: MF

4-5-6 Clutch Dam Installation

Callout

Component Name

1

4-5-6 Clutch Spring

2

4-5-6 Clutch Piston Fluid Dam

Tip
DT 47693-1 which is part of DT-47693 prevents the dam seal lip from damage during installation. Apply a thin coat of ATF to the I.D. of DT 47693-1 which is part of DT-47693 to ease the installation of the dam.

Special Tool

DT-47693 Dam Protector

3

4-5-6 Clutch Dam Retaining Ring

Special Tools

    • DT 47693-2 Clutch Spring Compressor which is part of DT-47693 Dam Protector
    • J 8059 Snap Ring Pliers-Parrallel Jaw or equivalent

4-5-6 Clutch Plates Installation


Object Number: 1737934  Size: MF

4-5-6 Clutch Plates Installation

Callout

Component Name

1

4-5-6 Clutch Hub Thrust Bearing

Tip
Note location of the orientation lip on bearing. All thrust bearings can only be assembled one way.

2

Reaction Carrier Hub Assembly

Notice: Failure to use DT 48551 could cause damage to the hub assembly bushings which could cause premature transmission failure.

Tool Required

DT-48551 Reaction Hub Bushing Protector

3

4-5-6 Clutch Plate (Qty: 6)

4

4-5-6 Clutch (w/Friction Material) Plate Assembly (Qty: 6)

5

4-5-6 Clutch Backing Plate

6

4-5-6 Clutch Backing Plate Retaining Ring

Tip
Gently push down on the backing plate to get enough clearance between the backing plate and retainer.

3-5 Reverse Clutch Plates Installation


Object Number: 1737936  Size: MF

3-5 Reverse Clutch Plates Installation

Callout

Component Name

1

3-5 Reverse Clutch (Waved) Plate

2

3-5 Reverse Clutch Plate (Qty: 4)

3

3-5 Reverse Clutch (w/Friction Material) Plate Assembly (Qty: 4)

4

3-5 Reverse Clutch Backing Plate

5

3-5 Reverse Clutch Backing Plate Retaining Ring

Piston and Reluctor Wheel Installation


Object Number: 1737938  Size: MF

Piston and Reluctor Wheel Installation

Callout

Component Name

1

3-5 Reverse Clutch Piston Dam Seal

2

3-5 Reverse Clutch Piston Inner Seal (Black)

Tip
Apply a thin coat of ATF to the seal to ease the installation of the piston.

3

3-5 Reverse Clutch Piston Inner Seal (Orange)

Tip
Apply a thin coat of ATF to the seal to ease the installation of the piston.

4

3-5 Reverse Clutch Spring Assembly

5

3-5 Reverse Clutch Piston

Tip

    • J-46622 prevents the piston seal lip from damage during installation. Apply a thin coat of ATF to the I.D. of J-46622 to ease the installation of the piston.
    • Install J-46622 onto the speed sensor reluctor wheel. Push the 3-5 Reverse Clutch piston into the reluctor wheel until it stops against J-46622 . Remove J-46622 by seperating it at the opening.

Special Tool

J-46622 Piston Seal Protector

6

A/Trans Input Shaft Speed Sensor Reluctor Wheel

7

A/Trans Input Shaft Speed Sensor Reluctor Wheel Retaining Ring

Notice: Compress the reluctor wheel just enough to clear the retainer ring groove. Over compressing the reluctor wheel will break the alignment tab and the clutch housing.

Special Tool

DT-47694 Piston Spring Compressor

35R and 456 Clutch Piston Air Check


Object Number: 1875586  Size: MF

35R and 456 Clutch Piston Air Check

Callout

Component Name

1

Case Cover Assembly

Tip
The fluid seal rings should be in place and not damaged.

2

Apply shop air to the 4-5-6 clutch feed. Observe the 4-5-6 piston movement.

Notice: Regulate the air pressure to 40 psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Tip
Minimal piston movement and excessive air leaking could indicate damage to the 4-5-6 piston seals or improper assembly.

3

Apply shop air to the 3-5-Rev clutch feed. Observe the 3-5-Rev piston movement.

Notice: Regulate the air pressure to 40 psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Tip
Minimal piston movement and excessive air leaking could indicate damage to the 3-5-Rev piston seals or improper assembly.