The text at this link gives a simple explanation of Caster, Camber....
https://explorationoutfitters.com/pa...0is%20positive.
"All within specs"...get a new alignment shop...if one side looks distinctly different from the other there is obviously something not right.
Here are the true GM Specs
Left Front
Camber = .5 degrees to -.7 degrees
Caster = 4.7 degrees to 2.7 degrees
Toe = -.05 degrees to .15 degrees
Right Front
Camber = -.7 degrees to .5 degrees
Caster = 2.4 degrees to 4.4 degrees
Toe = .15 degrees to -.05 degrees