Sierra, Silverado 2006-2007

Removal & Installation

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Drag Link



C3HD
  1. Raise the front of the truck and support it on safety stands.
  2.  
  3. Remove the nuts from the Pitman arm and drag link ball studs.
  4.  
  5. Press the link off the arm and the tie rod.
  6.  
  7. Install the link. Tighten the Pitman arm ball stud to 46 ft. lbs. (62 Nm) to seat the tapers. Tighten both ball stud nuts to 40 ft. lbs. (54 Nm).
  8.  

Idler Arm



  1. Raise and properly support the vehicle.
  2.  
  3. Remove the idler arm ball stud nut. Discard the nut.
  4.  
  5. Using a screw-type ball joint tool, separate the idler arm from the relay rod.
  6.  

To install:

  1. Make sure that the threads on the ball stud and in the ball stud nut are clean and smooth. If threads are not clean and smooth, ball stud may turn in the socket when attempting to tighten nut. Check condition of ball stud seal; replace if necessary.
  2.  
  3. Position the idler arm on the frame and install the mounting bolts. On 2005-06 and 2007 Classic, tighten the frame-to-bracket bolts to 71 ft. lbs. (96 Nm). On 2007 models except Classic, tighten to 78 ft. lbs. (105 Nm).
  4.  
  5. Install the idler arm ball stud in the relay rod, making certain the seal is positioned properly. Tighten the new ball stud nut to 46 ft. lbs. (62 Nm). Always advance the nut to align the cotter pin hole. NEVER back it off!
  6.  
  7. Lower the vehicle.
  8.  

Pitman Arm



2005-06 & 2007 Classic C3HD Series
  1. Raise and properly support the vehicle.
  2.  
  3. Disconnect the drag link from the Pitman arm ball stud.
  4.  
  5. Matchmark the Pitman arm to the Pitman shaft, remove the nut from the steering gear shaft and discard it.
  6.  
  7. Remove the Pitman arm with the proper tool (ball joint puller).
  8.  

To install:

  1. Install the arm so the marks line up with those on the shaft. Tighten the nut to 184 ft. lbs. (250 Nm). Tighten the ball stud nut to 48 ft. lbs. (62 Nm).
  2.  

2005-06 & 2007 Classic, Except C3HD
  1. Raise and properly support the vehicle.
  2.  
  3. Remove nut from Pitman arm ball stud.

    Click image to see an enlarged view

    Fig. Removing the Pitman arm

  4.  
  5. On C/K series, break loose the Pitman ball stud from the relay rod using a screw-type ball stud tool. Pull on the linkage to remove the stud.

    Click image to see an enlarged view

    Fig. Typical steering linkage components

  6.  
  7. If necessary, unbolt the steering gear from the frame.
  8.  
  9. Remove the Pitman arm nut from the Pitman shaft or the clamp bolt from the Pitman arm, and mark the relation of the arm position to the shaft.
  10.  
  11. Remove Pitman arm, using a large puller.
  12.  

To install:

  1. Install the Pitman arm on the Pitman shaft, lining up the marks made upon removal.
  2.  
  3. Make sure that the threads on the ball studs and in the ball stud nuts are clean and smooth. If threads are not clean and smooth, ball studs may turn in their sockets when attempting to tighten the nut. Check the condition of the ball stud seals; replace if necessary.
  4.  
  5. Install the Pitman shaft nut or Pitman arm clamp bolt and tighten to 184 ft. lbs. (249 Nm).
  6.  
  7. If removed, bolt the steering gear to the frame.
  8.  
  9. Position the ball stud onto the Pitman arm or relay rod.
  10.  
  11. Tighten the Pitman arm-to-relay rod nut to 46 ft. lbs. (62 Nm). Always advance the nut to align the cotter pin hole. NEVER back it off!
  12.  
  13. Lubricate ball studs.
  14.  
  15. Lower the vehicle to the floor.
  16.  

Except Classic
  1. Raise and properly support the vehicle.
  2.  
  3. Remove the steering gear from the vehicle.
  4.  
  5. Remove the pitman arm nut, then extract the pitman arm using puller J6632-01 or equivalent.
  6.  

To install:

  1. Install the arm so the marks line up with those on the shaft. Tighten the nut to 184 ft. lbs. (250 Nm).
  2.  
  3. Install the steering gear in the vehicle.

    Click image to see an enlarged view

    Fig. Exploded view of the pitman arm-2007 models, except Classic

  4.  

Relay Rod (Center Link)



  1. Raise and properly support the vehicle.
  2.  
  3. Disconnect the steering shock absorber from the relay rod.
  4.  
  5. Remove the nut and disconnect the inner tie rod ball joint from the relay rod using a screw-type ball joint tool. Discard the nut.
  6.  
  7. Remove the nuts from the Pitman and idler arm ball studs at the relay rod. Discard the nuts.
  8.  
  9. Using a screw-type ball joint tool, disconnect the relay rod from the Pitman and idler arm.
  10.  
  11. Remove the relay rod from the vehicle.
  12.  

To install:

Installation is the reverse of removal but please note the following important steps.

  1. Make sure that threads on the ball studs and in the ball stud nuts are clean and smooth. If the threads are not clean and smooth, ball studs may turn in sockets when attempting to tighten nut. Check condition of ball stud seals; replace if necessary.
  2.  
  3. Connect the relay rod to the idler arm and Pitman arm ball studs, making certain the seals are in place. Tighten the new ball stud nut to 46 ft. lbs. (62 Nm). Always advance the nut to align the cotter pin hole. NEVER back it off!
  4.  
  5. Install the tie rod to the center link.
  6.  
  7. Install the shock absorber.
  8.  

Steering Linkage Shock Absorber (Damper)



  1. Raise and properly support the vehicle.
  2.  
  3. Remove the frame end nut and bolt.
  4.  
  5. Remove the cotter pin and nut from the relay rod end. It may be necessary to separate the shock from the relay rod with a screw-type ball joint tool.

    Click image to see an enlarged view

    Fig. Steering shock absorber-2005-06 models and 2007 Classic



    Click image to see an enlarged view

    Fig. Steering shock absorber-2007 models, except Classic

  6.  
  7. Install the shock and tighten the frame end nut and bolt to 33 ft. lbs. (45 Nm); the relay rod end nut to 46 ft. lbs. (62 Nm).Always advance the nut to align the cotter pin hole. NEVER back it off! A maximum torque of 59 ft. lbs. (80 Nm) is permissible to align the hole.
  8.  

 
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