Rough runnin 7.3 idi

My uncles got a 87 f250 with the 7.3 idi with about 450000 miles on it. It was starting then running rough then it would die. It sounded like a fuel issue so I started with the fuel system. I first checked the filter and noticed that the bowl was empty so it wasnt getting any fuel I started checking the lines back I found the problem like there next to the bowl. The feed line was cracked so I changed that and the fuel filter cause it looked dirty and cleaned the bowl out also cause it looked like no one had ever cleaned it before. So that was about a 4 hour job. He also had me do the wheel bearings, and change the diff fliuds which was about anouther six hours
Tot hours 183