It is not a torque to yield bolt. It should last your lifetime and that of your kids and grandkids and so on. It is an M16x60 bolt with International part number 934738R1 or Ford F4TZ26A340A. Here's one source - Crankshaft Damper Bolt 94-03 7.3L
Thank you all! I feel much better, & "yes" I did the silicone keyway, ford_doctor.(thank you) I as doing much reading thru search function & thats where I thought someone mentioned manual says replace that bolt, it's a tty. Then it got me wondering. Now I just need to find a big ars torque wrench. I was using a 3' pipe on my 1/2" breaker bar, & have no clue how tight I am.