1. Safety First:
* Disconnect the battery: This prevents accidental short circuits.
* Use jack stands: Never work under a car supported only by a jack.
2. Preparation:
* Gather tools: You'll need various wrenches (metric and possibly SAE), sockets, a puller (possibly a gear puller), screwdrivers (Phillips and flathead), penetrating oil, and possibly a torque wrench.
* Consult your service manual: This step is crucial! The manual will have detailed diagrams and specific instructions for your car.
* Take photos: Before disconnecting anything, take detailed pictures of the steering column and its connections. This will be invaluable during reassembly.
3. Disconnecting Components:
* Steering Wheel: Remove the steering wheel. This usually requires a special steering wheel puller.
* Steering Column Connections: Disconnect any wiring harnesses, vacuum lines, and linkage connected to the steering column. Note their locations meticulously.
* Column Shaft: The steering shaft connects the column to the gearbox. There will be a clamp or coupling securing the shaft to the gearbox. You'll likely need to carefully remove this clamp or coupling. Penetrating oil may be helpful.
* Power Steering Linkage: Disconnect the linkage that connects the gearbox to the steering linkage on the pitman arm.
* Power Steering Hose(s): Carefully disconnect the power steering hoses from the gearbox. Be prepared for some fluid leakage – have rags ready.
4. Removing the Gearbox:
* Support the Gearbox: Once the connections are disconnected, the gearbox itself is likely held in place by bolts. These bolts might be difficult to access.
* Remove the Gearbox Mounting Bolts: Carefully remove the bolts that secure the gearbox to the steering column.
* Separate Gearbox from Column: Gently separate the gearbox from the steering column. You may need to use a puller if it's stuck.
5. Reassembly:
Reassembly is the reverse of disassembly. Again, your service manual is crucial here. Pay close attention to the torque specifications for all bolts and connections. Incorrect torque can lead to component failure.
Important Considerations:
* Penetrating Oil: Use penetrating oil liberally on all bolts and connections before attempting to remove them. This will help prevent breakage and make the process easier.
* Patience: This is not a quick job. Take your time, be methodical, and don't force anything.
* Professional Help: If you're not comfortable working on your car's steering system, consider seeking professional help from a mechanic. Improper repair of the steering system can be dangerous.
This is a general overview; specifics will vary based on your car's exact setup. Always refer to a factory service manual for your 1964 Chevy Nova before beginning any repair work. A Haynes or Chilton manual might offer some guidance, but the factory manual is the most accurate resource.
