I have a 62 page (62 separate .jpg files) document published by Chevrolet that explains how to overhaul and adjust truck steering boxes. It is dated 1952. I think it is beyond my ability to post on this site, but who knows, maybe one of the moderators could take on that task. I'll attach some pages here.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12 '52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.