Hummer H1 (2006+). Manual - part 202

5-48

Transmission/Transfer Case

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Figure 5-26:   Loosening Extension Housing

Figure 5-27:   Extension Housing Removal

5.

Remove the rear retainer bolts. Then remove the mainshaft bearing snap ring (Figure  5-28).

6.

Pry the rear retainer upward at each lug with a screwdriver (Figure  5-29). Remove the retainer after breaking the sealer bead.

EXTENSION

HOUSING

PLASTIC

MALLET

REAR

CASE

REAR

RETAINER

EXTENSION

HOUSING

SNAP

RING

10-1-08

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 Transmission/Transfer Case  5-49

5745804

Figure 5-28:   Mainshaft Bearing Snap Ring Removal

Figure 5-29:   Rear Retainer Removal

7.

Remove the speedometer tone wheel and the snap rings (Figure  5-30).

8.

Remove the rear case attaching bolts and remove the rear case (Figure  5-31).

CAUTION: Loosen the rear case with screwdrivers positioned in the slot at each end of the case. This will avoid damaging the
case sealing surfaces.

REAR

RETAINER

SNAP RING

LUG

LUG

SCREWDRIVER

REAR

RETAINER

10-1-08

5-50

Transmission/Transfer Case

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Figure 5-30:   Speedometer Tone Wheel Removal/Installation

Figure 5-31:   Rear Case Removal

9.

Remove the oil pump, pickup tube, hose and the screen (Figure  5-32).

10. Remove the O-ring from the oil pump inlet port (Figure  5-33).

MAINSHAFT

SNAP RING

TONE WHEEL

SNAP RING

REAR

CASE

REAR

CASE

OIL

PUMP

10-1-08

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 Transmission/Transfer Case  5-51

5745804

Figure 5-32:   Oil Pump Assembly Removal

Figure 5-33:   Oil Pump O-ring Location

11. Remove the drive sprocket snap ring (Figure  5-34).

12. Remove the drive sprocket (Figure  5-35).

13. Remove the drive chain.

14. Remove the front output shaft and the driven sprocket as a assembly (Figure  5-36).

OIL PUMP

OIL PICKUP

TUBE

HOSE

OIL SCREEN

REAR CASE

OIL PUMP

INLET PORT

O-RING

10-1-08