cheapest way to convert to manual steering?

point me to where i can find both for that price please.

and why would you say i should change the pitman arm? is their a benefit?

I got the adapter from a guy on this site for $75.00 shipped,and the pitman arm from rockauto for $75.00. Yes,I am a little over my original estimate,but still a cheap change.

You dont necessarily have to change the pitman arm.Depending on the condition of yours. It just makes sense to put in a new part if you have it all apart,especially if its 40yrs old.

I have seen the adapter come up on e-bay from time to time.
Different car sites,swap meets,etc....