I am not one for giving what may not be correct information until I ask the correct questions.
Since he has already stated that the part they are sending him to isn't correct, I wouldn't go out on a limb and say that he definitely needs a Moog K7075. Identification is key. I know you love giving information such as using brake drums that don't fit the registers and are too wide but personally I deal in accurate information so people don't have other issues to deal with.
While K7075 shows to be correct by the application, it is possible that the car has the earlier 72 back steering linkages which will fit the later K frame he has.
