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Chevrolet Silverado / GMC Sierra. Manual - part 2764
Fig. 17: Measuring Idler Arm Movement (Relay Rod End)
Courtesy of GENERAL MOTORS CORP.
6. If the movement exceeds 2 mm (0.078 in) then replace the idler arm.
2008 Chevrolet Silverado 1500
2008 STEERING Steering Linkage - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 18: Installing Dial Indicator At The Idler Arm
Courtesy of GENERAL MOTORS CORP.
7. Install the runout gauge at the idler arm.
8. Push the tire inward slowly with one hand to remove any lash.
Zero out the runout gauge and pull outward in order to take a reading.
2008 Chevrolet Silverado 1500
2008 STEERING Steering Linkage - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 19: Measuring Idler Arm Movement (Relay Rod End)
Courtesy of GENERAL MOTORS CORP.
9. Allow only 1 mm (0.039 in) of movement at the idler arm ball stud.
If the movement is more than 1 mm (0.039 in) then replace the idler arm.
2008 Chevrolet Silverado 1500
2008 STEERING Steering Linkage - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
IDLER ARM REPLACEMENT
Tools Required
J 24319-B Steering Linkage and Tie Rod Puller
Removal Procedure
1. Remove the engine shield, if equipped. Refer to Engine Shield Replacement .
NOTE:
Do not attempt to free the ball stud by using a pickle fork or wedge
type tool, because seal or bushing damage could result. Use the
proper tool to separate all ball joints.
2008 Chevrolet Silverado 1500
2008 STEERING Steering Linkage - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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