[aigel]

I had a 2001 7.3 diesel, 4x4, Limited. One of the best vehicles I ever owned and would still have it if it wasn't totaled by an idiot kid on his phone creaming my family in it. It saved my family from serious injury.

So, with that out of the way, at 100k miles the previous owner installed Bilstein shocks and I always had the BFG all terrain on it with the proper load rating. It did NOT strike me as a rough ride ever. Stock ride height and wheels / tire size.

This makes me think that the OP's shocks may be shot? If yes, at least replace them with bilsteins and see what happens.

If it is a V10 or V8 model, they don't have a lot of value, but a diesel, just sell it and get the old man something comfy. There are a lot of mid size SUVs that ride nice and have easy height to get in/out of.

G