Hummer H3. Manual — part 859

Scoring

Burrs and nicks

2. Install the following seals:

The 4th apply piston outer oil seal ring (26) on the 4th apply piston (25).

The 2-4 servo cover O-ring seal (27) on the 2-4 servo cover (28).

The 2nd apply piston outer (18) and inner (19) oil seal rings on the 2nd apply piston
(17).

The O-ring seal (21) on the servo piston inner housing (20).

Fig. 465: Locating Servo Cushion Outer & Inner Spring With Retainer

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Courtesy of GENERAL MOTORS CORP.

3. Install the servo cushion outer spring (16), the servo cushion inner spring (105) (model

dependent) and the cushion spring retainer (15) in the 2nd apply piston (17).

4. Use the J 22269-01 and compress the second apply piston assembly (17). See Special

Tools.

5. Install the second apply piston retaining ring (14).

Fig. 466: Illustrating Assembly Order Of 2-4 servo components
Courtesy of GENERAL MOTORS CORP.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

6. Assemble the 2-4 servo components in the order shown: (12-15, 17, 20, 22-25, 28, 29).

Fig. 467: View Of 2-4 Servo
Courtesy of GENERAL MOTORS CORP.

7. Install the 2-4 servo assembly into the 2-4 servo bore.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 468: Installing J 29714-A
Courtesy of GENERAL MOTORS CORP.

8. Install the J 29714-A . See Special Tools.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3