A/C did not work when purchased Steering linkage worn out, had to be replaced at 135000 miles. Driver side power window gears had to be replaced at 135000 miles. Transmission failed at 140000 miles. (Likely the result of overworking the truck by previous owner). I am sure many other minor problems will occur with a vehicle this old and with the way I work the poor thing.
A real workhorse! It's a real rough rider, but always comes through. Ground clearance for a truck like this should be much better, (no skid plates, exhaust system too low). Never runs out of power even at timberline.
I have had my 89 F250 since 42,000. I now have 152,000. I towed a 5th wheel one summer 3500 miles. Good truck. Original transmission. Have replaced master cylinder twice, alternator twice, air conditioning overhaul once. Had long term problems with missing cylinders on hills. Recently had cylinder heads replaced due to cracking and warping. No major work on transmission; a little tired, but works like a champ.