'73 360 power steering pump?

[Jarran]

I have a '72 charger that someone thought would be a good candidate for a '73 360, I am looking at a march performance serpentine belt kit for it and there is 2 kits available, one that is for a "Saginaw keyway power steering pump" and one that is for a "Saginaw press fit power steering pump" and I have no clue as to which one I have, any help would be appreciated, I have no clue as to what either of them look like or what the difference is, and I would like to know which one is the correct one if I am going to drop $750 on it.

 

[1badgtx]

I have just went through all this....So you have the pump with the three spoke pulley??If you do then remove the bolt to see if it has a keyway on the pulley...If not then it,s a press on...I went from a federal pump to saginaw because march didn,t offer a pulley for my car..
Petty Blue 67 GTX