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catch 22 for me. I wanted my c7 raised as high as it would go, so I asked my service coordinator about it at the 500 mile oil change. He said I would have to have it aligned after raising it, BUT, since I had changed the factory settings of the bolts, that I would have to pay for the alignment. Since I wanted the free alignment, i opted to leave the bolts as is. did warn my brother to adjust the bolts himself before he went in for his 500 mile oil change and free alignment, so it would still be free.
C7 OEM recommended ride heights are in the attached doc.
"P-Height" is measured from ground, through center hub to top inner edge of fender lip. "R-Height" is the same for the rear.
When companies like DSC recommend stock height for their alignment specs, these are the stock numbers they are referring to, since so many people mess with the height adjustment bolts.