I need a manual steering pitman arm with the smaller spline diameter.
5 and 9/16 center to center.
It will probably need to be out of a full size like a Biscayne or caprice or something I'm guessing.
I tried a 65 cutlass one and a 67 chevelle one
They're 1/2'' too short.

recommendations welcome. I HAVE to use the delta idler arm, because it connects to the frame on an angle. Otherwise it wouldn't be a big deal.

If I can't find one soon, I'm just going to buy an s-10 box and call it a day.