Help with 1971 dodge dart steering

Ok so I'm new to this site but I have a very unusual problem. On my 1971 dodge dart swinger I have redone the entire front all bushings and ball joints EVERYTHING. Here is my problem. The steering wheel was off by almost 45 degrees to the left so the alignment shop I had align it just turned the wheel straight and aligned it. They came back telling me the pitman arm was installed wrong and that I have a lot more travel to the left rather than the right now and it's bad. Well my problem is the pitman arm the steering column and the steering wheel all have master splines and only go one position with the exception of the pit arm which appears to able to clock it about every 45 degrees. How do I get my steering centered and the steering wheel straight at the same time?