727 - Driveshaft Jammed All The Way In

Good info - I guess the question is now that the old rear is out and after the new one is in - will the longer yoke be an issue? I can always measure to account for the longer yoke and have the driveshaft shortened accordingly. I will have to poke around and see.
I would think the longer length would be from a truck (4X4) or van, due to the action at the rear end while carrying cargo or 4-wheeling. That way the slip yoke could compromise the inner and outer movement. Fitting into the transmission should all be the same. I would think the longer would be best for a HI-PRO car for the same reason. A frontal separation of the driveshaft is not good. All of mine are long.