Wheel base difference side to side

On my 70 Dart the passenger side rear tire is closer to the front lip than the driver side. I wanted to eliminate body panel differences so I measured from center of front spindle to center of rear axle. Sure enough there is almost a quarter inch difference. Front end is all new and rear leafs have solid front eye bushings so I cant blame wore out parts. Would there be any harm in spacing the spring hanger back on the one side to make both sides the same distance?