Installation Procedure

Install the idler arm (1) to the frame.
NOTE:
Install the bolts (2).
Tighten

Tighten the bolts to 105 N.m (77 lb ft).

Fig 1: Installing Idler Arm (AWD)
Courtesy of GENERAL MOTORS CORP.
Use the J 29193 in order to install the relay rod to the idler arm ball stud.
Ensure that the seal is on the stud.

Tighten

Tighten the J 29193 to 54 N.m (40 lb ft) in order to seat the tapers.
Remove the J 29193

Fig 2: Installing Relay Rod To Idler Arm Ball Stud
Courtesy of GENERAL MOTORS CORP.
Install the new prevailing torque nut to the idler arm (5) ball stud.
Tighten

Tighten the prevailing torque nut to 47 N.m (35 lb ft).
Lower the vehicle.
Adjust the toe-in.
Refer to FRONT TOE ADJUSTMENT in Wheel Alignment.

Fig 3: Installing New Prevailing Torque Nut To Idler Arm Ball Stud
Courtesy of GENERAL MOTORS CORP.