Assuming that the axle is at "normal" ride height and you intend for the drag link to go across to the right side under the vehicle, it looks to me like there is a long vertical distance between the box and the tie rod. That would cause bump steer that could be objectionable. As the axle comes up in a bump, the drag link will push the tie rod to the right, as it falls it will pull the tie rod to the left. They all do it to differing degrees and you do need some clearance. Just my thoughts.
I will try to get a look at my '62 and see how it is set up, it has been a very long time since I did it. I used a box from a Chev pickup and the drag link goes rearward to the top of the left steering knuckle, nearly parallel with the ground. There is enough room in that one so the linkage does not interfere with the tire/wheel.
