66 B-Cuda pitman arm

Well I can't find my answer in my 66 FSM, so I thought I would ask a question to the guys who know. Are the pitman arms on 66 B-Cudas, and 66 Valiants the same,???.
I have been looking at Summit, and Rock Auto, they both don't list them for the 6 B-Cuda, and
they both list them for 66 Valiant. I thought they would be the same. What gives,???.

Thanks Dave