2006 LLY CCSB 4wd 6sp Allison.

Any words of wizdom to make this thing as trouble free as possible and last a long time?

I keep hearing about mods to the emission systems cause of soot buildup. Something about a blocking plate or new down tube.

I know the Fords had EGR issues and of course headgaskets on the 6.0.

I really don't plan on any type of tunes or power adders. I just went on a 600 mile trip pulling my trailer and it did great. I dont see the need for additional power given my present application.