MYSTERY DRIVESHAFT.......IS IT THE RIGHT LENGTH?

Found a chart, 70-72 Demon/Duster 340 and 727 uses a 44.99 inch long driveshaft. I was close...
Hope this helps Troy.
This shaft is 1/4 inch longer, but the yoke s 1/4 inch shorter than my original....Both have the same total length but my original is pitted badly. That's why I installed the mystery driveshaft and posted where it ended up.
Should be about a 1/4 inch off the dust boot that is on the seal, When the car is on the ground.
This rear seal has no dust boot as I am accustomed to seeing. Just the seal that came with the kit which is flat.