[russcc]

The green bible lists them. What you want to keep in mind, is what Scooder touched on briefly. You want a ratio of somewhere between 0.85:1 to 0.96:1 for reasonable steering effort, and speed for the right road feel, Example; Divide a 6.00" pitman arm, by a 6.250" steering arm, (the effective length from the drag link connection to the wheel tire centerline. The ratio of that example is 0.96:1. After you measure the effective length of the steering arm, you can determine the right length pitman arm you need, and post that dimension on the Barn, and someone will tell you which one you need.