Try this. Knock your drag link loose from the knuckle. Jack up the axle on the drivers side until the passenger side tire starts to come off the ground. Check the position of the drag link in relation to the steering arm on the knuckle. If the drag link is still hanging below it's mounting point, you have enough play in the upper rod end to handle it. If the drag link, hanging free, is above the mounting point, you need a drop arm or something, because when you flex out on the trail it'll try to separate the drag link at the pitman arm, and either bend or break the drag link, bend the pitman arm, or pull the steering box away from the frame.
EDIT: If you do go to a dropped arm, get some kind of steering box brace on there, and consider reinforcing the frame. The dropped arm increases the stress on the box mount considerably.