1967 Dart Drivetrain swap.

Whether 8.25 or 9.25, the axles are c clip type. I asked Dr Diff about axles for a 9.25 and i think he told me 500.00 for the pair. Not sure the other axle makers would be able to make them. A lot of guys use 8.8 exploder or dana 60. Easier for a dana 60 as you can sell it later. My 2 cents, but i have 6 dana 60's.
I'm not sure what you mean by easier? Easier to shorten?