this is not my article.
most of this referes to crossover steering now that I think about it. I do run the later p/steering on my 4 x 4 with the old draglink setup to the l/front wheeland to me that would just mean centreing you strg on that setup

"My question. You mention "earlier trucks" and then the 60-66 models. Does any of this apply to the 47-55 1/st models?? I already have my power steering box (1974) and the kit coming from Classis parts to install the power steering on my 52 AD."
again I think that it would only apply to crossover steering.
just check how far each wheel turns to the lock
ron