Notes
Slide Show
Outline
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2004 – 2006
GTO
Suspension
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2004 – 2006
GTO Suspension
  • GTOAA 2007 Autocross
  • Strut Rub 101
  • Leaking Struts
  • Urethane Bush Installation
  • GTO Wheel Alignment
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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GTOAA 2007 Autocross
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Strut Rub 101
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This is Strut Rub
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This is your tire with Strut Rub
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This is Proper Clearance
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This is Strut Rub
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This form of tire to strut contact is NOT Strut Rub
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Strut Weld to Tire Sidewall contact is Strut Rub
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What should be done to correct Strut Rub?
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"Inspect the front suspension components..."
  • Inspect the front suspension components to confirm there are no damaged, bent or worn out of spec and replace bits as necessary.
    • Hard Parts
      • Strut Clevis
      • Control Arm
      • Radius Rod
      • Sway Bar Endlink
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"Inspect the front suspension components..."
  • Inspect the front suspension components to confirm there are not damaged, bent or worn out of spec and replace bits as necessary.
    • Soft Parts / Bushes
      • Radius Rod
      • LCA Outer
      • LCA Inner
      • Strut Mounts

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"Checking the clearance between the..."
  • Checking the clearance between the tire sidewall and the strut weld is vital.
  • Proper Tire Inflation is Vital
  • All vehicles of all makes and models require routine maintenance.
    • Oil Changes
    • Tire Inflation
    • Tire Rotation


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Leaking Struts
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Struts manufactured between January 16, 2006 and May 4, 2006, may experience the leaking condition.

Those manufactured prior to January 16, 2006 or after May 4, 2006 do not experience to the condition.
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Date
Code:
dd/mm/yy
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Results of Leaking Struts
or
Damaged Struts
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"Contamination of the Bump Stop"
  • Contamination of the Bump Stop
  • Cut by Compression
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"Cracked Strut Bearing"
  • Cracked Strut Bearing
  • Cracked Strut Collar
  • Cut Bump Stop
  • Crushed Strut Mount
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"Bent Endlinks"
  • Bent Endlinks
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What Cause Leaking Struts?
  • Manufacturing Defect
    • Improper Oil Fill
  • Severe Impact
    • Pot Hole
    • Curb
    • Collision
  • Excessive Camber
    • Worn Strut Mounts
    • Front Strut Mount Camber Kits


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What should be replaced if my struts leak?
  • The leaking Struts
  • Contaminated rubber bushes
  • Damaged Strut Mounts
  • Contaminated Bump Stops
  • Cut Bump Stops
  • Bent Hard Parts
  • TTY Clevis Bolts
  • Strut Mounting Nut
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How to Install Urethane Suspension Bushes
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Pedders Bush
Installation Guide
  • Urethane Bushes
    • Tools Required
    • Surface Prep
    • What to Grease
    • What NOT to Grease
  • Interference Fit Bushes
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Polyurethane and Grease
  • Grease is supplied when required.
  • Apply only to the bush surfaces designed to pivot (flange faces and internal bores).
  • Ensure all paint, rust and rubber deposits are removed from all components in contact with bushes and are clean.
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Clean bright metal and urethane CANNOT squeak.
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Unacceptable!!!
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Polyurethane and Grease
  • DO NOT grease pressed fit surfaces or the outside surface load bearing bush surface or control arm hole.
  • DO NOT use any lubricant other than the packages supplied by Pedders.
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Never Grease a Load Bearing Surface!
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Grease only the inner sleeve.
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Polyurethane and Grease
  • Grease is supplied when required.
  • Apply sparingly only to the bush surfaces designed to pivot (flange faces and internal bores).
  • Ensure all paint, rust and rubber deposits are removed from all components in contact with bushes and are clean.
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Installation of Interference
Fit Bushes
  • Prepare the control arm holes as you would for a urethane bush.
  • Use dishwashing liquid detergent for lubricant.
  • NEVER use a petroleum based lubricant for interference fit bushes.
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GTO Wheel Alignment
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Camber
  • Negative pulls the top of the wheel in
  • Positive pushes the top of the wheel out
  • Negative Camber is desirable for Autocross and Road Course use
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Caster
  • When the wheel is behind the pivot at the point where it contacts the ground, it is in positive caster.
  • Picture yourself trying to push the cart and keep the wheel ahead of the pivot. The wheel will continually try to turn from straight ahead. That is what happens when a car has the caster set too far negative.
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Toe
  • Toe-in means that the fronts of the tires are closer to each other than the rears.
  • Toe-out is just the opposite.
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Steering Axis Inclination
  • SAI is the measurement in degrees of the steering pivot line when viewed from the front of the vehicle. This angle, when added to the camber to form the included angle causes the vehicle to lift slightly when you turn the wheel away from a straight ahead position.
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Thrust Angle
  • Thrust Angle is the direction that the rear wheels are pointing in relation to the center line of the vehicle. If the thrust angle is not zero, then the vehicle will "dog track" and the steering wheel will not be centered.
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Pedders GTO Alignment Specs
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Haddad GTO Alignment Specs
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Lehmer’s GTO Alignment Specs
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Expert GTO Alignment Specs
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Pedders GTO Alignment Specs
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Thank You for Listening