Originally Posted by
jpsawyer
okay. thank you for that information. i will need a square taper spindle. if you could tell me what kind of spindle i would need to fit those cups that would be great
You're doing it backwards.
You know that you need French thread cups, so you start by measuring your existing spindle to find out what spindle you need, then you get French cups to match that spindle.
Work form the harder to spec part to the easier one.