Rear camber and toe are adjusted with eccentric cams,what can be done if the eccentrics are maxed out and the desored camber can not be attained. Presently the camber is almost 2degrees too negative.
Rear camber adjustment on 2005 Pontiac G6
Has the alignment shop suggested something is bent? Is the incorrect camber only on one side. There are several companies that make offset bushings and cams or shims to compensate when this happens but I can not think of the name of any off hand. Call several alignment shops and see if they know a company that manufactures such an item and that you will do the research if need be.