Hey Y'all
My son just bought a 1989 F350 duelly, with 7.3 IDI motor, 5sp. The truck has 175,000 miles on it. What areas of maintenance should we be doing other than the normal fluid changes. I'm looking for the things to look at on a truck that has a lot of miles. When I bought my truck it was almost new,14,000 Mi., so other than normal fluid changes there was not much to repair on it. This truck runs pretty strong, a little bit of a hard starter. Thanks Guys, Bruce