Steering shaft ?

[Bunky]

So I installed a 79 power steering Box on my 67 (originally manual) with 1/4 sspacers

When I put this together it appeared my wheel was off 180 degrees, I centered the wheel and had the truck aligned.. was fine but turned sharp left. but not right and turn signals cancel turning right but not left.. (so after doing some research my original manual gear box shaft was round no flat so the steering shaft could of been on in a different position then the power box.)

So then I relocked the pitman arm as others have done and of course the wheel is still off again and turn signals still don't cancel turning left ..

So I have read about the different rag joints and how some are clocked different so this puts the wheel off 180 degrees.. I don't see a notch on my steering shaft at the steering wheel nut to align the shaft and wheel to original setting.

So is there another way to tell if my steering shaft and wheel are in the proper position before I have it re aligned. To make my turn signals cancel again ?