I don't have fox, but I do have a 5.0
I'd have to write a book to list all that I've done/fixed, but here's just a quick list:
Caster Cambers added and adjusted (didn't come with them)
Calipers, Rotors (1rst time, stocks were beat to hell, before Cobra swap)
EGR return pipe (broke away from the X pipe)
Thermostat Sensor (replaced, original died)
EGR Sensor/Valve (both failed/died)
A/C Lines (all were leaking)
New Air Compressor (stock had failed and was leaking oil)
New Exhaust Headers Back (exhaust that came with the car had rusted and failed)
Fuel Pump (replaced with a 155lb, stock failed)
Cobra break kit w/ drilled/slotted rotors (stocks just don't cut the mustard)
New Tires (tires that came with the car were shot)
New Spark Plugs/Wires (believe it or not it still had plugs and wires from 95 lol)
New Timing Cover Gasket (blown gasket)
Two Thermostat Cover Gaskets (blew those twice)
Rebuilt W/C T-5 with new transmission mounts (stock T-5 blew)
Spec Stage 1 Clutch (stock clutch and bearings were shot to hell)
Aluminum Driveshaft (just for the hell of it)
New Rear Differential Gasket (other gasket failed and started leaking)
New Seats (stocks were.....well....nasty)
New Radiator (stock was shot)
New Battery (last one was shot)
New Powermasters 220 amp alt (last one was a Bosch and was shot)
New Radiator hoses (stocks were old and worn)
Chrome Upper Radiator hose (hey I like the bling)
New Ignition Coil (stock was D...E...A...D)
All my new engine parts (just cause I love power

)