Just want some insight as to what I should or not do to the truck. Well just purchased an 05 -2500 with over 350,000 miles. Everything is stock and the previous owner claims all he ever had to do was replace the the injector wires for the 2&7 injectors. The truck runs good tranny shifts smoothly. So my question is should I do any of the mods that are recommended to do to kinda prevent issues that are common with the lly’s.