The 466E made its way in mid-late 95, BUT you could order a mechanical one up thru 97. The 93-97 are what's called the NGD(new generation diesel), and came stock with a P-pump, mounted up high. I'll add the pix of the 2 generations. Note the intake and valve cover differences. I hope you can see the intake elbow on the newer one.
I know, it's Frank's truck, but it's the only pic I had of a full side shot of an older 466.