333K miles, still going
I bought my 2000 4.7 new (had 13 miles on it from the dealer). I just passed 333,333 miles, so I'm at 1/3 of a million! Quite proud. I haven't had any problems out of this truck and haven't had to do any repairs except a tranny rebuild, which was my fault. When the truck was about 2, I hopped in one night, cranked it up and started cutting doughnuts in the snow. Dumb, real dumb, so I snapped some bands and needed a rebuild. That rebuild lasted 9 years and I had to rebuild again 2 years or so ago. Other than that, nothing but oil changes, belts and a few hoses. Oh, I did replace the AC compressor a few years ago. Other than that,just normal wear and tear maintenance.