excessive wear on front driver tire?

to much caster or to much toe....or both ..... another note most frt end machine s now a days dont go back far enough for any of us ..... i use a diplomat program when i did the one on my dart if that helps .... earliest i could find so works well no tire wear ....

Caster is a non wearing tire angle. If the toe is out to cause that much wear in a short time, I would highly suspect both tires would be worn. If they are not, there is only one thing that could be causing too much outside wear on only one tire. Too much positive camber.