Neither of those is correct for a 4-speed car. If you look closely, you will see that the yoke on the end is attached to a smaller tube that fits inside the larger tube, and they have vulcanized rubber to fill the gap between them. The 4-speed cars did not have that rubber moulded in them--the yoke is welded solid to the main tube, therefore making what is called a solid driveshaft. The 4-speed driveshaft is also 1" shorter than an automatic driveshaft.
If you can find one out of a regular skylark or Pontiac that had a 3 or 4 speed manual transmission, then you can have it shortened by 1" at a driveshaft shop and it will be correct.