Investigated some power steering options today.
Click here and there are a few more similar pictures.
http://rides.webshots.com/photo/2464142410080251109hWGboA

A steering gear box from an Isuzu cab over truck, looks like a good choice but will probably wait till after engine and radiator are in place to decide exact placement, either forward of or behind the axle.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-