Hummer H2. Manual — part 2731

Fig. 97: View Of Drive Chain & Sprockets
Courtesy of GENERAL MOTORS CORP.

36. Install the drive chain and sprockets.

z

The blue link on the chain faces up.

z

Align the drive sprocket engagement teeth with the lockup shift assembly hub teeth.

IMPORTANT: If using the chain and sprockets again, ensure to align the marks of the

drive chain and sprockets.

2004 Hummer H2

2004 DRIVELINE/AXLE Transfer Case - Overhaul - BW 4482-NR4

Fig. 98: Identifying Front Sun Gear
Courtesy of GENERAL MOTORS CORP.

37. Install the front sun gear.

2004 Hummer H2

2004 DRIVELINE/AXLE Transfer Case - Overhaul - BW 4482-NR4

Fig. 99: Aligning Marks On The Pinion Gears
Courtesy of GENERAL MOTORS CORP.

38. With the rear side of the planetary differential facing up, align the marks on the pinion gears. Position the

alignment marks with an area on the planetary differential that can be reference for all gears.

IMPORTANT: The planetary differential gears are timed to the sun gears. If the gears are

not timed properly, the differential will not rotate without binding.

2004 Hummer H2

2004 DRIVELINE/AXLE Transfer Case - Overhaul - BW 4482-NR4

Fig. 100: View Of Planetary Differential Assembly
Courtesy of GENERAL MOTORS CORP.

39. Install the planetary differential assembly.

z

Do not rotate the planetary differential pinion gears when installing.

z

Ensure the alignment marks are still in position.

z

The single row pinion gears face rearward, or up. The double row pinion gears face forward, or
down.

2004 Hummer H2

2004 DRIVELINE/AXLE Transfer Case - Overhaul - BW 4482-NR4