I just bought a F350 crew cab with 7.3 PSD. The truck has a 6 or 8'' lift with 36x15.50x16.5 wheels. The truck is cool and very big with lots of power but it's stock power. The thing I'm looking for is for someone to point me in the right direction on mods for the 7.3 and suspension. I am going to use the truck as a Daly driver mostly highway miles. But i need it to be a good hauler for heavy loads and kick *** off-road. It would be cool if someone could help.