Pitman arm question

I picked up a manual steering sector out of a 68 Dart to replace the PS sector in my 71.
The the ball joint on the 68 pitman arm that attaches to the cross link is to large and won't seat. And it doesn't look like the one off the power steering will fit the manual steering sector.

Anyone know the correct pitman arm to get for my 71 Dart?
I'm up for either a higher ratio or stock ratio arm.

Any help is appreciated.

Thanks guys.