need help with leaf rear springs

[59Mutt]

so i installed the springs but a couple folks say it dog tracks. i measured the front of the back tire to frame and it was 9 1/2 on the passenger side. and 9 1/2 on the rear of the drivers back tire. so it may be cocked. so my question today is.....what should be the distance from the front spring eye to the axle locating pin if reversed? how about stock? maybe i have one reversed. but i measured it before to make sure but maybe i made a mistake.