Good to know. I'm not sure how reliable the info he had on the crank was. I was under the assumption that a mechanic had looked at it, but it is possible it was just a mechanics guess hearing the symptoms described.
He was driving it occasionally for several years in that condition including freeway speeds, or at least what passes for freeway speeds with these trucks anyway. Based on what you say that would have been very unlikely.
I plan to replace belts, hoses, filters, fluids etc, who knows how long they had been on there before it was parked. It was never his daily driver.
Thanks, this is probably good news then. None of those options sounds nearly as involved as the crank and bearings.