Yes it is something you can do at home, as in all things patients is the key word. A friend of mine did the steering boxes in both 65 and 66 Darts, they worked out well. Some place in my library I have a copy of "Mopar Action" where E_burg rebuilt the steering box in the Green Brick. What I remember at the moment is there are 2 different manual boxes, 1 uses a bushing and the other uses a needle bearing , you'll want the needle bearing box, sorry I don't remember the quick ID of them. I do remember Eherenburg mixing up a concoction of 90 weight gear oil and grease on his stove and poured into the box as the lubricant. A FSM would be a real aid for doing this.
