7 1/4 to 8 3/4 Newb Questions

I needed a new driveshaft when I did this swap on a 67 Barracuda, but my numbers won't help you (because Dart is 3" longer). I was fortunate in that my buddy pulled the correct driveshaft out of a 6ft high pile of driveshafts at a wrecking yard — first try. You probably won't be that lucky.