So as mentioned in previous posts, I have an older french bike with cottered cranks. I've determined the following... The bb is 68mm french thread(and not swiss) and not made in japan(so the walls are thin). I found the following spindles in my box of stuff... campy 70ss, 68 something, and an older dura ace. Anyone know which one will work the best? Also, are all square tapered heads the same?