So you want heim joint aarms then. You should specify. They are apples and oranges. I have heims on my tie rods where it matters. I believe replaceing ball joints with heim joints is apples and oranges and should not be confused w the same thing. The avengers use ball joints yes and the stock issues were remedied with the change of angle for the ball joints.  I would never buy heim joint aarms unless the engineering demanded it.