Chevrolet Silverado / GMC Sierra. Service manual — part 2857

Fig. 43: View Of Shift Detent Plunger Assembly, Shift Detent Lever, Input Shaft, &
Planetary Assembly Components
Courtesy of GENERAL MOTORS CORP.

Shift Detent Plunger Assembly, Shift Detent Lever, Input Shaft, and Planetary Assembly
Installation

Callout

Component Name

1

Transfer Case Input Shaft Bearing Assembly

2

Transfer Case Input Shaft Inner Retaining Ring

3

Transfer Case High/Low Planetary Carrier Assembly

4

Transfer Case Planetary Carrier Sun Gear Thrust
Washer

5

Transfer Case Input Shaft

6

Transfer Case Planetary Carrier Sun Gear Thrust
Washer

7

Transfer Case High/Low Locking Plate

8

Transfer Case High/Low Planetary Carrier Retaining
Ring

9

Transfer Case Input Shaft/Planetary Assembly

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Rear Output Shaft Assembly Installation

10

Transfer Case Input Shaft Bearing Outer Retaining
Ring

11

Transfer Case Shift Lever Seal
Tip:

Lubricate the seal to ease installation.

Ensure the lip on the seal is facing inward.

Ensure the seal is installed squarely into the
bore.

Press the seal in, until it contacts the sector
bearing.

Special Tools

DT-48215 Shift Detent Lever Bearing Installer.
See Special Tools.

J 7079-2 Universal Driver Handle - Non-
Threaded. See Special Tools.

12

Transfer Case Shift Detent Lever Assembly

13

Transfer Case Shift Detent Plunger

14

Transfer Case Shift Detent Spring

15

Transfer Case Shift Detent Plunger Plug Seal
Tip: Lightly lubricate the O-ring with clean
DEXRON®VI.

16

Transfer Case Shift Detent Plunger Plug

Tighten: 20 N.m (15 lb ft)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 44: View Of Rear Output Shaft Assembly Components
Courtesy of GENERAL MOTORS CORP.

Rear Output Shaft Assembly Installation

Callout

Component Name

1

Transfer Case Rear Output Shaft

2

Transfer Case Two/Four Wheel Drive Synchronizer
Hub

3

Transfer Case Two/Four Wheel Drive Synchronizer
Insert (Qty: 3)
Tip: Ensure that the inserts are installed in the
correct orientation in the synchronizer hub. The
inserts should be able to move when correctly
installed.

4

Transfer Case Two/Four Wheel Drive Synchronizer
Sleeve

5

Transfer Case Two/Four Wheel Drive Synchronizer
Assembly

6

Transfer Case Two/Four Wheel Drive Synchronizer
Blocking - Outer - Ring

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Shift Forks Installation

7

Transfer Case Two/Four Wheel Drive Synchronizer
Blocking - Inner - Ring

8

Transfer Case Front Output Shaft Drive Sprocket

9

Transfer Case Front Output Shaft Drive Sprocket
Spacer - Rear

10

Transfer Case Front Output Shaft Drive Sprocket
Retaining Ring

11

Transfer Case Oil Pump Assembly

12

Transfer Case Rear Output Shaft Speed Reluctor
Wheel

13

Transfer Case Rear Output Shaft Rear Bearing
Retaining Ring

14

Transfer Case Rear Output Shaft Rear Bearing
Assembly
Tip:

Use an arbor press or a suitable installer to
install the bearing to the rear output shaft.

Ensure the retaining ring groove in the outer
race is positioned toward the rear.

15

Transfer Case Rear Output Shaft Rear Bearing
Retaining Ring

16

Transfer Case High/Low Clutch

17

Transfer Case Rear Output Shaft Assembly

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado