K frame confusion

A manual box is small sector only in any year 72 or 73 ,,And power steering changed to large sector shaft in 73 , so if he has all the correct 73 K-frame an components , he just needs the power steering box from 73 up with proper pitman arm , as he stated the rest is now converted with the 73 steering components , I assume as mentioned that the idler an pitman arm tapered shafts point down when installed and not upwards like the 72 earlier ,, That's a deciding factor ,, But I believe the poster's confusion was why a steering box from a 73 had the small sector shaft , and that was answered by
72bluNblu said:
The manual steering boxes are ALL small sector. Only the power steering boxes changed.