Minor progress --- Found the power steering gearbox I've been looking for. Came out of an '03 Isuzu NPR. My original manual box fits inside the frame rails and has to go to make room for the Cummins & Allison so I've been on the hunt for one that mounts outside the rails and would be compatible with the Cummins hydraulic pump (1500psi) and this unit does both. Thinking about going back and getting the whole steering column which would make for a simpler conversion but would like to keep the original Chevy truck wheel...somehow.
