I'll second what Pat32rf said. I bought a 2003 f450 16ft cube w/ 7.3l diesel in June(only 82,000km-now has 107,000).
Last week went out and no go. Hit it 10-12 times....nadda. Picked up a rebuild to put in...well. working on the gravel driveway, snowing.....wet heavy crap and blowing, not too cold, about -3 or 4 celcius. Wouldn't or at least shouldn't be a big deal as is only a two bolt job as yours was. One of the two bolts had head already M.I.A: now i knew the fun was beginning. Second one broke on the way out. No biggy, pull starter of the bolts/now studs and extract, right? **** thing was stuck somethin good as the aluminum holes on the starter had fused on to the steel shanks of the bolts. Couldn't swing hammer well enough at chisel to split the two apart. Got lucky by using the gas drive compressor and air chisel to get it free.............but whoooo man, would have been more fun doing it down in the land of the orange trees: of that I am certain.