So technically if you have a 1 inch difference in your measurement that means that the axle is a half an inch off of being Center. Not one inch.
Personally I'd be underneath there with the tape measure finding out where that half-inch came from. And then correcting it. Not moving the housing over half an inch.
But then I'd want my car going down the road straight instead of sideways. Although if it's sideways it will corner that One Direction much better than the other way.
