1990 Mustang GT 5.0 5-Speed Convertible – Slowly Bringing Her Back to Life
I’ve been working on my 1990 Mustang GT convertible a few hours at a time, taking my time and trying to do things the right way instead of rushing through everything. This has turned into a combination of maintenance, restoration, and upgrades.
So far, I’ve completed or had the following work done:
Engine / Cooling
- Water pump
- Thermostat
- Thermostat housing
- 70mm throttle body
- BBK cold-air intake
- New spark plugs
- Ford Racing spark plug wires
- New ignition coil
Electrical / Charging
- New 200-amp alternator
- New alternator bracket
- New belt tensioner
- New 4-gauge battery/charging cables
- Refreshed/replaced engine and vehicle grounds
- Headlight relay harness
A/C System
- New A/C compressor
- New receiver-drier/accumulator
- New orifice tube
- A/C system serviced and recharged
Power Steering
- New power steering pump
- New high-pressure hose
- New low-pressure/return hose
Exhaust / Performance
- BBK shorty headers
- Flowmaster Super 44 exhaust
Lighting / Exterior / Chassis
- New diamond-clear headlight assemblies
- 3-point strut tower reinforcement/brace
- 3M ceramic tint all around
- Kill switch
- Two-way paging Viper alarm system with up to a 1-mile range
I’ve also been cleaning parts and surfaces properly, repainting certain components for better aesthetics, and torquing everything to specification. I’m trying to keep the Foxbody character while making the car cleaner, more reliable, and more enjoyable to drive.
The project is still in progress, but the major mechanical, electrical, A/C, lighting, and exterior work is coming together. With the upgraded 200-amp alternator and new 4-gauge charging cables, the next big step is getting the car ready for the audio system.
This is my first time doing a lot of this work myself, so I’ve been learning as I go. I’m taking my time and enjoying the process. There’s something really satisfying about bringing a 35+ year-old Foxbody back to life one system at a time.
I’d love to hear from other Foxbody enthusiasts: what would you recommend checking, upgrading, or addressing next?