Chevrolet Silverado / GMC Sierra. Service manual — part 1086

Fig. 231: View Of Left Flywheel Inspection Cover
Courtesy of GENERAL MOTORS CORP.

22. Install the left flywheel inspection cover and bolt.

Tighten: Tighten the bolt to 10 N.m (89 lb in).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 232: Identifying Torque Converter Access Plug
Courtesy of GENERAL MOTORS CORP.

23. Install the torque converter access plug.

24. If the vehicle is equipped with a transfer case, install the front propeller shaft. Refer to

Front Propeller Shaft Replacement .

25. Install the catalytic converter pipe. Refer to Catalytic Converter Replacement (4.3L) or

Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L) or Catalytic Converter
Replacement (6.6L) .

26. Install the transmission mount. Refer to Transmission Mount Replacement (2WD) or

Transmission Mount Replacement (4WD).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

27. Install the transmission crossmember. Refer to Transmission Support Crossmember

Replacement (2WD 2500 HD/3500) or Transmission Support Crossmember
Replacement (2WD 1500/2500) or Transmission Support Crossmember Replacement
(4WD 1500/2500) or Transmission Support Crossmember Replacement (4WD 2500
HD/3500) .

28. Remove the transmission jack.

29. Install the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-

Piece Propeller Shaft Replacement .

Fig. 233: View Of Transmission Oil Cooler Lines
Courtesy of GENERAL MOTORS CORP.

30. Connect the oil cooler lines to the transmission. Refer to Transmission Fluid Cooler

Hose/Pipe Replacement.

31. Lower the vehicle.

32. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and

Connection (w/Single Battery) or Battery Negative Cable Disconnection and
Connection (w/Auxiliary Battery) or Battery Negative Cable Disconnection and
Connection (w/Dual Batteries) .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

33. Fill the transmission to the proper level. Refer to Transmission Fluid Check.

34. Reset the TAP values. Refer to Transmission Adaptive Functions (TCM).

OFF-VEHICLE REPAIR INSTRUCTIONS

HOLDING FIXTURE INSTALLATION

Tools Required

J 8763-B Holding Fixture and Base

Installation

IMPORTANT: It is recommended that transmission adaptive pressure (TAP)

information be reset.
Resetting the TAP values using a scan tool will erase all
learned values in all cells. As a result, the engine control
module (ECM), powertrain control module (PCM), or
transmission control module (TCM) will need to relearn TAP
values. Transmission performance may be affected as new
TAP values are learned.

NOTE:

For ON-VEHICLE repair information, see ON-VEHICLE REPAIR
INSTRUCTIONS. OFF-VEHICLE repair information is covered below.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado