Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Hummer H2 V8-6.2LFACTORY OEM SERVICE PROCEDURE
Steering Gear
Power Steering Gear Disassembled View (680 Gear)
Power Steering Gear Disassembled View (680 Gear):
1 - Stub Shaft Housing Bolt
2 - Stub Shaft Housing
3 - Stub Shaft Housing O-Ring
4 - Stub Shaft Housing O-Ring
5 - Steering Gear Pitman Shaft Housing Cover O-Ring
6 - Steering Gear Pitman Shaft and Housing Cover
7 - Steering Gear Pitman Shaft Lash Adjuster Nut
8 - Steering Gear Pitman Shaft Housing Cover Bolt
9 - Steering Gear Pitman Shaft Bearing
10 - Steering Gear Pitman Shaft Seal
11 - Steering Gear Pitman Shaft Washer
12 - Steering Gear Pitman Shaft Seal Retaining Ring
13 - Dust Seal
14 - Pitman Arm Boot
15 - Pitman Arm
16 - Pitman Arm Washer
17 - Pitman Arm Nut
18 - Steering Gear Housing
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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