...I am using the NPR power steering unit and will adapt a steering linkage to it. I have to remove the index groove in the steering arm so I can re-position it for my application...
Do you have any pictures? (of everything else too)
I have a couple Isuzu power steering gear boxes I also plan to use on AD trucks, haven't installed one yet but looks reasonably simple.
http://rides.webshots.com/photo/2383303470080251109BGdbLO Curious what you've done?
Grigg