Will a reaar end, springs and driveshaft from a 70 Dart 2dr fit in a 66 2dr?

As I recall, everything should fit fine although the driveshaft
will probably need to be shorten some. I believe the 66 Darts are
still 106 ( ? ) while the 70 are 108 or 111 depending on the model
as my elderly mind seems to recall.