my f-250 does pull slightly to the right. but when my buddy followed me he says its dog tracking the *** of the truck to the right about 3 inches. its never been wrecked suspension looks straight to the naked eye. but is something out of alignment here other than the front end?

 

If it has never been wrecked chances are one of the rear spring center bolts is sheared.

 

Check the U bolts on the rear axle... If loose the axle can slide back and forth, it can make for some interesting driving....

 

Check the thrust angle , like above u bolts or center pin....

 

ah broken center spring bolt thank u guys drives straight now.

 

Thanks for the fix report.