I am getting ready to add on a crew cab dually to pull a 40' gooseneck flatbed. Trying and hoping you can help to figure out the most reliable of the engines. 6.0 vs. 7.3 powerstrokes I have two trucks i'm looking at one is a 2001 350 with 7.3 and the other is a 2005 with 6.0 Any help will be appreciated

 

Hi and welcome cab-rat.
Both trucks would be fine to do the job, depending on their condition, drop into the General Diesel Discussion forum: https://www.ford-trucks.com/forums/forum171/ as well there are forums for the 7.3 & 6.0
Don`t over look your local MI chapter for even more info.