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Hummer Knowledge Base

The Hummer Knowledge Base

Tools List By Job:

Halfshaft W/CTIS & Underbody:

  • 5/8 inch Open End Combination Wrench
  • 3/4 inch Open End Combination Wrench
  • 7/8 inch Socket & Breaker Bar or Lug Wrench
  • 3/8 inch Extension 3 inch Long & Ratchet
  • 15 MM Socket 3/8 inch Drive
  • 12 inch Flat Tip Screwdriver
  • 9/16 inch Socket 3/8 inch Drive
  • 9/16 inch Open End Combination Wrench
  • 1/2 inch Socket 3/8 inch Drive
  • 1/2 inch Open End Combination
  • 14 MM Socket 3/8 inch Drive

Idler Arm:

  • Diagonal Cutter
  • 5/8 inch & 11/16 inch Socket 3/8 inch Drive
  • 3/8 inch Ratchet
  • 5/8 inch & 11/16 inch Open End Combination Wrench
  • 15/16 inch Open End Combination Wrench
  • 15/16 inch Socket 1/2 inch Socket 1/2 inch Drive
  • 1/2 inch Ratchet
  • Idler Arm Wedge (Pickle Fork)
  • 1 Lb. Ball Peen Hammer

Pitman Arm:

  • Diagonal Cutter
  • 15/16 inch Open End Combination Wrench
  • 15/16 inch Socket 1/2 inch Drive
  • 1-5/16 inch Socket 1/2 inch Drive
  • 18 inch Breaker Bar 1/2 inch Drive
  • Pitman Arm Puller

Tie Rod:

  • Diagonal Cutter
  • 1-1/8 inch Open End Combination Wrench
  • 1-1/8 inch Socket 1/2 inch Drive
  • 1 Lb. Ball Peen Hammer
  • 18 inch Pry Bar

Serpentine Belt:

  • 1/2 inch Breaker Bar
  • 1/2 inch to 3/8 inch Adapter

Rear Drive Shaft:

  • 5/16 inch Socket 1/4 inch Drive
  • Ratchet 1/4 inch Drive
  • 3 inch Extension 1/4 inch Drive
  • 12 inch Flat Tip Screwdriver

Front Drive Shaft:

  • 5/16 inch Socket 1/4 inch Drive
  • 3 inch Extension 1/4 inch Drive
  • Ratchet 1/4 inch Drive
  • 1/2 inch Open End Combination Wrench
  • 5/8 inch Open End Combination Wrench
  • 5/8 inch Socket 3/8 inch Drive
  • 11/16 inch Socket 3/8 inch Drive
  • Ratchet 3/8 inch Drive

Axle Oil Check:

  • 3/8 inch Allen Wrench

Transfer Case Oil Check & Drain:

  • 12 inch Crescent Wrench
  • 3/8 inch Allen

Ball Joint Upper 3/8 inch Bolt:

  • Diagonal Cutter
  • 15/16 inch Open End Combination Wrench
  • 15/16 inch Crow Foot 3/8 inch Drive
  • 9/16 inch Socket 3/8 inch Drive
  • 9/16 inch Open End Combination Wrench
  • Ratchet 3/8 inch Drive
  • Pickle Fork

Ball Joint Lower 7/16 inch Bolt:

  • Diagonal Cutter
  • 15/16 inch Open End Combination Wrench
  • 15/16 inch Socket 1/2 inch Drive
  • Ratchet 1/2 inch Drive
  • 5/8 inch Socket 3/8 inch Drive
  • 11/16 inch Open End Combination Wrench
  • Ratchet 2/8 inch Drive
  • Pickle Fork

Lift Pump:

  • 10 inch Crescent Wrench

Door Adjustment:

  • 1/4 inch Socket 12 Pt. 1/4 inch Drive
  • Ratchet 1/4 inch Drive

Tire & Wheel Removal:

  • 7/8 inch Socket 1/2 inch Drive
  • Breaker Bar 1/2 inch Drive
  • 3/8 inch Socket 3/8 inch Drive
  • Ratchet 3/8 inch Drive
  • 3/4 inch Open End Combination Wrench

The following are TORQUE values for above jobs:

  • Halfshaft Bolts - 57 ft. pounds
  • Idler Arm to frame - 60 ft. pounds
  • Idler Arm to Center Link - 80 ft. pounds
  • Pitman Arm to Center Link - 80 ft. pounds
  • Pitman Arm to Steering Gear - 185 ft. pounds
  • Tie Rod Ends - 70 ft. pounds
  • Rear Drive Shaft - 13 to 18 ft. pounds
  • Front Drive Shaft to Axle - 13 to 18 ft. pounds
  • Front Drive Shaft to Bearing - 125 to 150 ft. pounds
  • Front Drive Shaft to T/C - 13 to 18 ft. pounds
  • Ball Joint Upper 3/8 inch Bolt - 37 ft. pounds
  • Ball Joint Lower 7/16 inch Bolt - 65 ft. pounds
  • Ball Joint Slotted Nut - 73 ft. pounds
  • Wheel Flat Nut - 140 ft. pounds
  • Wheel Acorn - 110 ft. pounds


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The Hummer Knowledge Base is a collection of informative posts from the Hummer Network forums and mailing lists, contributed material and links to outside web sites.
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