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Going to replace the LCA's on my '06 3.5 this weekend and was wondering if anyone who has done it has any tips/suggestions. I know the motor mount needs to be removed on one side and the transmission mount on the other but was wondering if they need to be completely removed or if just a couple bolts can be loosened and then jack the engine/transmission up an inch or so. Any help is greatly appreciated as the clunking is beginning to drive me insane.
 

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2006 Pontiac G6 | G6 VIN Z Service Manual | Suspension | Front Suspension | Repair Instructions |
Document ID: 1557169

Lower Control Arm Replacement

Removal Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the wheel. Refer to Tire and Wheel Removal and Installation .
3. If equipped with a LX9 engine, perform one of the following steps:
• If removing the left lower control arm, remove the side transmission mount. Refer to Transmission Mount Replacement - Left Side for the 4T40-E/4T45-E Automatic
Transaxle.
• If removing the right lower control arm, remove the engine mount. Refer to Engine Mount Replacement for the 3.5L (LZ9) engine.
4. Remove the lower control arm front bushing to frame bolt.
5. Remove the lower control arm rear bushing to frame bolts and nuts.

1. Prior to removal, note the orientation of the lower control arm ball stud to steering
knuckle pinch bolt and remove the pinch bolt and discard.
2. Separate the ball stud from the steering knuckle.
1. Remove the control arm from the vehicle.
2. Remove the lower control arm rear bushing. Refer to Front Lower Control Arm Bushing Replacement .

Installation Procedure
1. Install the lower control arm rear bushing. Refer to Front Lower Control Arm Bushing
Replacement .
2. Position the lower control arm to the frame assembly and steering knuckle.
3. Note the previous orientation and install a new ball stud to steering knuckle pinch bolt.
Hand tighten only.

1. Install the lower control arm front bushing to frame bolt. Hand tighten only.
Notice: Refer to Fastener Notice .
2. Install the lower control arm rear bushing to frame bolts and nuts.
Tighten
2.1. Tighten the ball stud to steering knuckle pinch nut to 50 [email protected] (37 lb ft).
Reverse the nut 3/4 of a turn .
Tighten to 50 [email protected] (37 lb ft) +30 degrees.
2.2. Tighten the bolts with the front suspension loaded by using the proper jackstand.
2.3. Tighten the front bushing to frame bolt to 50 [email protected] (37 lb ft) plus 90 degrees.
2.4. Tighten the rear bushing to frame bolts to 50 [email protected] (37 lb ft) plus 90 degrees.
3. If equipped with a LX9 engine, perform one of the following steps:
• If the right lower control arm was removed, install the engine mount. Refer to Engine
Mount Replacement for the 3.5L (LZ9) engine.
• If the left lower control arm was removed, install the side transmission mount. Refer to
Transmission Mount Replacement - Left Side for the 4T40-E/4T45-E automatic
transaxle.
4. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation .
5. Lower the vehicle.


Hope this helps any.
 
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