I am gearing up to possibly sell my incredibly reliable Toyota 4runner and buy a 7.3L Powerstroke E350 to 4x4 swap. Reason being, I want to build a rig to live out of full time. When looking for an E350 that fits my criteria, it is guaranteed to be at least 5 years older than my already 16 year old Toyota. A prospective E350 will also more than likely have around double the miles my 4runner currently has. Are there any reliability issues specifically with 4x4 swaps (or any other things I should know) you have come across that I should be aware of? I want to make sure that my literal home on wheels isn't in the shop every other day.