1965 Dodge Dart stock differential advice

SIX225 said
I know you want to keep things original, but do you have disc brakes up front? Have you though about upgrading? Might keep that in mind and go with BBP instead of SBP. I don't think the 8 1/4 ever came SBP.

Those that have done this with SBP and didn't want to convert just have the axles drilled to 5x4 opposite the4-1/2 circle.