Difference in 7.3 engines
It has several places in there that detail differences in these motors for different year models, and gives the serial number cut off for each one.
I also played around with the web address a little and came up with a directory listing here http://www.fordtechservice.dealercon...atabase/files/
My internet connection is too slow to open all the pdf's, so if you find other useful links, please post them here and I'll save a copy of those too.
Here are a few that I thought might be useful to those here in the diesel forum:
51S04T0.PDF is titled Diesel Performance
As is this one
And this one
And this one is called Diesel Engine Performance Diagnosis
Here is one on the 6.4 specifically Not that any of us are foolish enough to need it

Here is one called Medium Duty Truck Hydraulic Brakes Operation and Diagnosis
All the last links (the ones that start with TF) are all fundamentals courses on basic fundamentals of different vehicle systems. Good info if you like to read.







