<strong>4.</strong> I am using a Scout steering box from PSC Motorsports that has been reversed to push the box forward away from the suspension parts. To determine the proper pitman arm length, I measured from the ball joint to the tie rod mount on the steering knuckle (A). If the pitman arm's sector-shaft-to-draglink-end length (B) is greater than A, the steering will be fast, but there is added stress on the box. If B is less than A, the steering is stronger, but slower. After seven different pitman arms I ended up with a nearly flat pitman arm from a Ford steering box I found at a junkyard that is just short of the knuckle length and clears the frame perfectly.