Best cheap thing I can think of, Is go thru the whole truck system by system and evaluate exactly what you have. Does it work? Is there a trim piece missing? Floor Grommet gone? Something rattling around in the door? Weatherstrip rotting?
Leaks? Hows your coolant? Have you done a radiator flush? Check your hoses. How is your belt? Belt Tensioner? Pulleys? PS Pump? Alternator? Smog Pump? How are your suspension bushings? Do all the interior lights work? Exterior? Wet sand and polish headlight lenses.
Look for rust. You can wire brush and touch up any underbody rust. Pull the seats and the carpet, and check for rust, missing grommets. Check all your emission vacuum lines. Check your battery and cables, electrical system, fuses. Pull Codes, KOEO, KOER. Wash the windows GOOD, inside and out. Clean the interior.
Tighten any loose bolts/screws. Check your brakes (Jack it up and pull the wheels). When were your bearings last greased and packed? Inspect U joints, drive shaft, axle shafts.
There are alot of things like this you can do to ensure that your rig is running at optimum performance. If you dont look for things, you will end up on the side of the road thinking, damn I should have checked that.
Make a good list of maintenance items, repair items, replace items, missing items.
These trucks are OLD. Have had many owners typically, so there will be things missing. Search the internet for a list of local junk yards that you can walk around in. Go out there and see what they have. F-150, F-250, F-350, Bronco's all have many parts in common.
Many parts in the JY are fine and are certainly cheap, some are even free. Once you have your list, surf the junk yards and find the little things that are missing. Make sure you bring your list, I get sidetracked easily and find things im not even looking for and forget things I am looking for. Sometimes you will find something in better shape than whats on your truck and you can swap it out. If you find a yard that has tons of mid 90s Ford Vans, you could strip the PS pump Bracket and sell them to people wanting to do a Saginaw Swap.
Just some Ideas of things I do, when I dont have anything else to do or have little or no money but want to do something.
Having no job sucks, Ive been unemployed for 14 months now, but thankfully I finally have a job interview in a couple of weeks.