Chevrolet Silverado / GMC Sierra. Service manual — part 770

Fig. 93: View Of Bolt Securing Fuel Line Bracket To Left Side Of Transmission
Courtesy of GENERAL MOTORS CORP.

24. Remove the bolt that secures the fuel line bracket to the left side of the transmission.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 94: View Of Oil Cooling Lines & Bolt
Courtesy of GENERAL MOTORS CORP.

25. Disconnect the transmission oil cooler lines from the transmission. Refer to Transmission

Fluid Cooler Hose/Pipe Replacement .

26. Plug the transmission oil cooler line connectors in the transmission case.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 95: View Of Transmission Bolts
Courtesy of GENERAL MOTORS CORP.

27. Remove the 8 bolts securing the transmission to the engine.

28. Pull the transmission straight back.

29. Install the J 21366 onto the transmission bell housing to retain the torque converter.

30. Remove the transmission from the vehicle while simultaneously removing the fluid level

indicator tube.

31. Flush the transmission oil cooler and cooling lines if necessary. Refer to Transmission

Fluid Cooler Flushing and Flow Test (J 45096) or Transmission Fluid Cooler
Flushing and Flow Test (J 35944-A) .

INSTALLATION PROCEDURE

1. Install the J 21366 onto the transmission bell housing to retain the torque converter.

2. Support the transmission with a transmission jack.

3. Raise the transmission into place while simultaneously installing the fluid indicator tube.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

4. Remove the J 21366 from the transmission.

5. Slide the transmission straight onto the locating pins while lining up the marks on the

flywheel and the torque converter.

The torque converter must rotate freely by hand.

Fig. 96: View Of Transmission Bolts
Courtesy of GENERAL MOTORS CORP.

6. Install the 8 bolts securing the transmission to the engine.

Tighten: Tighten the bolts to 50 N.m (37 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado