Can you change a manual gearbox into automatic?

While it's possible to convert a manual gearbox to an automatic one, it is not something that is commonly done, and it can be a complex and expensive project. The process involves replacing the manual gearbox with an automatic transmission, along with various other components such as the torque converter, transmission control unit (TCU), and shift mechanism. It also requires modifications to the vehicle's driveline and engine management system. Depending on the specific vehicle model, the cost of such a conversion can be substantial, and it may even exceed the value of the car itself. Here's a general outline of the steps involved in converting a manual gearbox to automatic:

1. Compatibility Check: Ensure that the automatic gearbox you plan to install is compatible with your vehicle's engine, chassis, and other systems.

2. Disassembly: Remove the manual gearbox and its related components (clutch pedal, shift linkage, etc.).

3. Modifications: Depending on the type of transmission you're installing, you may need to modify the vehicle's floorpan, transmission tunnel, and driveshaft to accommodate the new components.

4. Installation: Install the automatic transmission, torque converter, and other necessary components.

5. Wiring: Connect the wiring for the transmission control unit (TCU), shift selector, and other electrical systems.

6. Software Updates: Program the TCU with the appropriate software and calibration for your vehicle.

7. Driveline Modifications: You might need to replace or modify the driveshaft, axles, and differential to ensure proper compatibility.

8. Testing: Perform thorough testing to ensure that the automatic transmission is functioning properly and shifting smoothly.

It's important to note that this process is not straightforward and requires specialized knowledge, tools, and expertise in automotive mechanics and electronics. It's generally recommended to have this type of conversion done by a professional mechanic or a qualified automotive workshop that specializes in transmission systems.