Add your abody driveshaft length for quick reference
This isn't a factory length but these swaps are becoming more popular and relevant maybe for reference?
A508/46RH swapped from 727
67 Dart (111" WB)
5.9/360 Magnum/A508 46RH/8 3/4
driveshaft length at c-to-c of u-joints = 45 1/2"