Anyone have the correct length for a BB Dart?

Every build is enough different that I wouldn't do it. I can get a driveshaft turned around here in a day or two (local shop) that it's just not worth guessing that it will actually be the same as a factory build.

Case in point. I built a 67 Dart hardtop with a 440/4sp/8-3/4. After my older son hurt the car beyond repair I gave the drivetrain to my other son for his 67 Dart convertible. The only difference was the rear springs. The driveshaft that fit the hardtop perfectly was slightly too short for the convertible.