Steering Linkage Interference

[CRGRS 66]

I have installed a power steering gear box, and used the captains bracket (which is a beauty btw), purchased a pitman arm that I thought was to suit the new gear box, wondering if I have the wrong one, and if I need to get a different one. I will be in the US of A next weekend so I could easily pick one up at Advance Auto Parts or wherever.

I am only able to turn the wheels a small amount in each direction, the interference is only on the driver side. Turning left the tie rod adjuster comes in contact with the sway bar, turning right the inner tie rod end comes in contact with the frame.

I thought that the pitman arm should have gone further onto the shaft, but a mechanic told me this was normai (this was before I realized I had an interference issue)

Can anyone tell me what pitman arm I need?