Drive shaft length

I must have been splitting hairs when I posted 51.53" but that was what the FSM had.
All of the drive shaft lengths are in there.
Here`s a novel idea, why not just measure the dam thing and have one made like u want it ! Around $150 here ! New, stronger , and balanced . I `ve had 4 diff ones made, only had trouble w/ one of them, and that was behind a superstock hemi engine, the rear yoke broke on the big end.