How to adjust rear camber 2005 malibu - 2005 Chevrolet Malibu

To adjust the camber, loosen the inner lower control arm cam-bolt nuts and adjust the cam-bolt to the correct specification. You will need to safely raise the vehicle off the ground to make the adjustment, However you won't get a true reading of camber until the vehicle is back on the ground. I would suggest SMALL adjustments then get BOTH sides checked for the camber alignment.
By twisting the bolts in the lower arm the offset collars on them shift the lower arm in and out to correct the camber.

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I don't think this vehicle is equipped with provisions allowing a camber adjustment in the rear. If there are adjustments provided, there will be cam bolts in the lower control arms for adjustment. If there are no adjustment bolts, and the camber is out, usually there will be something bent. Also check rear ride height which can affect camber for a broken spring.

It may be the suspension. An arm may be bent.

There is no camber adjustment from the factory,however moog sells a camber bolt kit that will allow for adjustment. About 20 bucks . If you are talking about the rear of the car,ride height makes a drastic change in camber. If the springs start to get weak the camber will go negative,spring spacers will correct this.

There is likely an eccentric bolt on the lower contorl arm. The one on the arm closest to the bottom center of the wheel hub is the camber adjustment, the other eccentric is the toe adjustment. You really should have it aligned with a computerized alignment machine. Changing the rear camber changes the rear toe and vise versa. It would be nearly impossible to get both within an acceptable range without the proper equipment. You can crudely measure rear toe using a tape measure but you won't know what the thrust angle is and that could cause some serious alignment issues.

needs ofset camber bushings installed

chevy dealer

Alignment: Specifications
Alignment
Wheel Alignment
Tire size:
VAN, LX, EX, EX-L models: P235/65R16 103T
EX-L Touring model: P235-710R460A 104T
Tire pressure:
Front (VAN, LX, EX, EX-L Touring models) ........................................................................................................... 230 kPa (2.3 kgf/cm2, 33 psi)
Front (EX-L model) .................................................................................................................................................. 240 kPa (2.4 kgf/cm2, 35 psi)
Rear ........................................................................................................................................................................... 240 kPa (2.4 kgf/cm2, 35 psi)
Caster angle ................................................................................................................................................................................................... 2° 32' ± 1°
Camber angle:
Front ........................................................................................................................................................................................................ 0° 00' ± 30'
(Maximum difference between the front right and left side: 0° 30')
Rear ............................................................................................................................................................................................................. -0° 30' ± 45'
The camber angle can be adjusted up to ±25' (center of tolerance) by replacing one damper pinch bolt with the adjusting bolt. The camber angle can
be adjusted up to 50' by replacing both damper pinch bolts with the adjusting bolts.
Front toe-in ............................................................................................................................................................................. 0 ± 2 mm (0 ± 1/16 inch)
Rear toe-in ......................................................................................................................................................................... 2 ± 2 mm (1/16 ± 1/16 inch)
Turning angle

Inward wheel 41° 56' ±2°
Outward wheel 34° 32' (Reference)

Toe - 0° +/- 2mm

Might want to check your camber adjustments and look into shocks and struts. They could all be worn out but prolly the camber is off causing abnormal road noise and abnormal tire wear