Look at the splines on the Pitman arm and you'll see there are usually 3 or 4 wide splines that index it to the steering gear sector shaft. A sneaky trick we used to use when setting up race car steering was to take a 3-cornered file and split the wide splines so the Pitman arm would fit in any position. It helps equalize lock-to-lock centering on a modified steering system to move the Pitman a spline or two sometimes.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!