Ok, got my drive shaft out and can report some preliminaries.
Yokes are in-line.
Centers are 49.95"
Bolted straps on diff yoke.
But....seemingly not original as the u-joints are pinned, not 'C' clipped or snap ringed??
But....pins are OEM only?, replacement uni's are furnished with 'C' clips? If so, then where the heck did this shaft come from??