The pitman arm can be placed on the motor shaft correct or 180 degrees wrong. IT's best to run the motor to the parked position then attach the linkage accordingly.
I can only hope you dont loose a some little clip. Fingers crossed.
Thats how i did mine. I turned it off an on a couple times, to make sure it worked, then put the linkage back on.
Its not hard, but it helps to be a contortionist, under the dash..lol