Drive shaft legnth?

I don't think a scamp ever came with a 727 trans in it from the factory but I could be wrong. I also think they went to the 8.25 rear end in 73 as well so you will have to try to use 72 measurements. The chart I saw shows a 72 dart with a 904 and an 8.75 rear measures 51.96 ". I just took a 727 out of my 66 cuda and put a 904 back in it. The 727 drive shaft id roughly 4-4.5" shorter than for the 904. So i would have to say that the drive shaft you need is probably around 47.5-48". I can get the exact difference tomorrow if you like.