She may have jarred your steering rack enough to cause the gear to loosen up "tension wise". That is very common in front end/corner collisions.
Edit: If the truck had to be aligned, it is also possible that the caster angle was set too negative.
Good luck getting everything back to normal
Edit: If the truck had to be aligned, it is also possible that the caster angle was set too negative.
Good luck getting everything back to normal