Yes you can put a IH pump on the P'stroke. Need to check the IH catalog for the 444E engine. I'd suggest doing the "IH conversion" that some of us have done. Get the IH pump with the integral spin on coolant filter.
Here is a thread link to get you started. Let me know if you have any questions.
http://forums.thedieselstop.com/ubb...497upgrades1&Number=2288597&fpart=&PHPSESSID=
Did mine a couple of months ago. Love it.
TP
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Thanks for your' post. I'm looking at it 5 yrs later. I think I'm up against a water pump replacement in my 2000 super duty. The IH conversion sounds great but I'm having trouble with the link posted. I don't know if it's my iPad or the link is old. Is it possible to renew? Thanks!