By standard you mean just the regular old 16:1 power steering box right?
On the AAR’s they were used to change the 16:1 power steering boxes to an effective 12:1 ratio. The AAR steering boxes weren’t that different, they had the same ratio as the standard power steering box but if I recall correctly the internal stops were changed because of how the longer pitman changes the throw.
On a standard power steering box they still give the same effective ratio, 12:1.
