Just curious if anyone else has found when they purchased front rotors for their early 99 (11/98 build date) that they had to buy light duty F-250 rotors instead of super duty rotors? I had this happen around 100,000 and I just put in my first hub/wheel bearing assembally at 155,000 (updated to the post 3/21/99 bearing). So in turn I thought I would do the rotor (post 3/21/99) right away to make up for the .115 difference of the flanges. However I can't fit the post rotors on the truck (seriously the pad area is like 2'' bigger on the super duty rotors) I have something like 13'' and the book calls for 15'' rotors??? So anyway I had to shim the calliper braket with two .115 hard washers, use my rotor and I'm back on the road again. Maybe someone knows what is the deal with this, would be helpful just to know.