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Chevrolet Silverado / GMC Sierra. Manual - part 2858
Front Output Shaft Assembly, Drive Chain, and Oil Pump Suction Pipe Installation
Fig. 46: View Of Front Output Shaft Assembly, Drive Chain & Oil Pump Suction Pipe
Courtesy of GENERAL MOTORS CORP.
Front Output Shaft Assembly, Drive Chain, and Oil Pump Suction Pipe Installation
Callout
Component Name
1
Transfer Case High/Low Shift Fork
2
Transfer Case Two/Four Wheel Drive Shift
Fork Assembly
3
Transfer Case Control Actuator Shaft
4
Transfer Case Shift Fork Spring
Callout
Component Name
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Transfer Case Rear Case Half Installation
1
Transfer Case Front Output Shaft Assembly
2
Transfer Case Front Output Shaft Drive Chain
Assembly, Transfer Case Front Output Shaft Driven
Sprocket
Tip:
Install the chain with the darkened links facing
up.
Engage the driven sprocket to the chain.
Install the driven sprocket over the front output
shaft assembly while engaging the chain with the
drive sprocket.
3
Transfer Case Oil Pump Suction Pipe Seal
Tip:
Use a NEW seal.
Lubricate the seal to ease installation.
Install the seal to the pipe prior to inserting the
pipe into the pump.
4
Transfer Case Oil Pump Suction Pipe
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 47: View Of Transfer Case Rear Case Half Components
Courtesy of GENERAL MOTORS CORP.
Transfer Case Rear Case Half Installation
Callout
Component Name
1
Transfer Case Front Output Shaft Driven Sprocket
Spacer
2
Transfer Case Front Output Shaft Driven Sprocket
Spacer Spring
Tip: Ensure the spacer spring is properly positioned
into the spacer groove.
Sealer GM P/N 12345739 (Canadian P/N 10953541)
or Equivalent
NOTE:
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Rear Output Shaft Seal and Bushing Installation
3
Tip:
Ensure both sealing surfaces of the front and rear
case halves are free of dirt, oil, and cleaning
solvent.
Apply a 2 mm (0.078 in) bead of sealant to the
front case half.
Apply the proper amount of sealant to the flange when
assembling the transfer case. Excessive amounts of
sealant can plug the oil pump screen, resulting in internal
component failure.
4
Transfer Case Rear Case Half
Tip:
Ensure the transfer case rear output shaft outer
retaining ring is in place and aligned prior to
mating case halves.
Use snap ring pliers to open the transfer case
rear output shaft outer retaining ring for the
transfer case rear output shaft rear bearing
assembly.
Insert a rubber coated screwdriver into the speed
sensor hole and lift up on the reluctor wheel to
engage the retaining ring with the rear bearing
assembly.
5
Transfer Case Bracket
6
Transfer Case Bolts (Qty: 17)
Tip: Tighten the bolts by hand. Do not use an air gun.
Tighten: 25 N.m (18 lb ft)
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
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