Make sure your starter is dry on the insides. I had to drive thru flooded river water and latter parked . Those older starter casings don't like being under water. After the truck is parked a while the corrosion will start to set in. Blowing the starter off with air hose, or even a leaf blower may help a little.
Some of the big AD trucks had a vent on the top of the rear differential. Make sure that didn't go under water.
Front wheel bearings should be OK if you drove the truck a lot after submerging. But check them in future along with brake shoes.
Darn mud in the water can haunt those parts long after they dry.
Finally, a quick look over all your electric wiring (cloth insulated!) and relays that may have gotten wet on your truck would not hurt . It's not like the water hurts them right away , its when those parts sit wet a long time afterwards that aids corrosion.
