The fuel pump went out when it was only about a year old. I replaced it only that once. The factory installed AM/FM Cassette died in 1990 and I replaced it with an in-dash Alpine unit that still works fine. I replaced the starter and power steering pump in 1991. The Alternator has been replaced twice. From about 50k miles on, I had rear main seal leaks from time to time - replacements would usually last a couple of years before it would start leaking again. At 197k miles, I had a bad rear main seal leak and it ran out of oil on my son during a fire-wood gathering trip. I had the local garage completely rebuild the engine, and now have about 5k miles on the rebuild, and a little over 300,000 miles on the truck. The self adjusters on the rear brakes have never worked as they should have and need work again right now.
It is and has always been a very strong and durable truck. When it was new, it was exceptionally fast for a truck. The C6 transmission shifts as well today as it did the day I took ownership of it. I am 6' 3" and 270 lbs. and the seating has always been very comfortable and roomy because of the extra room in the Super-Cab. In fact, roominess, especially leg room was the main factor that sold me on this truck in 1984. At that time, no other manufacturer was producing an extended cab model truck.
First off I am an apprentice mechanic, I have had my truck for 5 months now. This truck has a 302, dual exhaust, headers, flow master mufflers and 32"-11.50" by 15" tires, a 4 speed manual transmission. It is a regular cab, regular box four by four.
So far it has been very dependable and easy to work on and required very little to safety considering it's age and that says a lot considering around here any truck older than 1990 is basically a write off. It goes where ever I point whether in the mud, rock crawling or any other type of off road driving, it's towing capacity is great and it is the best all around truck I have ever owned.
I have just purchased a 1984 F 150 with the carbureted 302 and A.O.D. transmission. It is in very good shape overall, I just have to replace the voltage regulator on it. I hope that this old girl will be around for a long time, a lot longer than my 1990 GMC 1500 that I just got rid of.