glad to be here

Welcome to the site, yeah, 1'' difference is quite a bit.
The production tolerances on these cars wasn't great to start with, but that is way too much to be factory IMHO.
Has the car ever been in an accident?
Is it the front end, rear end of the car, or both?
It sounds like the rear to me, but it wouldn't surprise me if it was both ends.
Did you measure the spring perches side to side for centering and the wheel offset?
If that all checks out, I would be taking it to a place with a good frame machine to check it out and corrected as needed.
Pics would go a long way here........