Essential Tools:
* Jack and Jack Stands: Safely supporting the car is paramount. Use jack stands, never rely solely on a jack.
* Transmission Jack: This is crucial for safely supporting the transmission during removal and installation. A floor jack is insufficient for this purpose.
* Torque Wrench: Essential for tightening bolts to the manufacturer's specifications, preventing damage. Different sizes will be needed.
* Socket Set (Metric): A complete set of metric sockets, including deep sockets, is essential. Sizes will range widely, depending on the specific bolts involved.
* Ratchets (various sizes): To use with the socket set. Extensions and swivel sockets will also be very helpful.
* Wrenches (Metric): Both open-ended and combination wrenches will be needed for various fasteners.
* Pry Bar: For gently separating components that might be stuck.
* Hammer (rubber mallet preferred): For carefully tapping components loose.
* Drain Pan: To catch the transmission fluid.
* Fluid Catch Can: To collect any other fluids that might spill.
* Penetrating Oil (PB Blaster or similar): To loosen rusted or stubborn bolts. Apply liberally and let it sit for a while.
* Safety Glasses and Gloves: Always protect your eyes and hands.
* Shop Rags or Paper Towels: For cleaning up spills and keeping things tidy.
* Wheel Chocks: To prevent the car from rolling.
Potentially Needed Tools:
* Clutch Alignment Tool: If you're replacing the clutch, this is essential for proper installation.
* Torque Converter Wrench: For removing the torque converter from the transmission.
* Differential Jack (optional): Can make dropping the rear of the transmission easier.
* Engine Support Bar: Helps support the engine's weight to prevent damage. Highly recommended.
Specific Socket Sizes (Approximate - Consult a Repair Manual):
You'll need a variety of metric socket sizes, including but not limited to: 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm. Some might be larger.
Important Note: This list isn't exhaustive, and the specific tools needed might vary slightly. Always consult a repair manual specific to your 1991 Mustang GT before starting this job. A repair manual will provide detailed instructions, torque specifications, and diagrams that will be invaluable. This is a complex task best attempted by someone with mechanical experience. If you're unsure about any part of the process, it's best to seek professional help.
