How to Install a South Bend Clutch on a Subaru Wrx: Step-by-step Guide & Performance Gains

Installing a South Bend clutch on your Subaru WRX can significantly enhance your vehicle’s performance. This guide will walk you through the step-by-step process, ensuring that you achieve optimal results.

Tools and Materials Needed

  • South Bend Clutch Kit
  • Basic hand tools (sockets, wrenches)
  • Torque wrench
  • Jack and jack stands
  • Transmission fluid
  • Clutch alignment tool
  • Shop towels
  • Safety glasses

Preparation Steps

Before starting the installation process, ensure you have all the necessary tools and materials ready. Follow these preparation steps:

  • Park your Subaru WRX on a flat surface.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Raise the vehicle using a jack and secure it with jack stands.

Removing the Old Clutch

Now that your vehicle is prepared, follow these steps to remove the old clutch:

  • Remove the driveshaft by unbolting it from the differential and sliding it out.
  • Disconnect the transmission from the engine by unbolting the bellhousing.
  • Support the transmission with a jack and remove the transmission mount bolts.
  • Carefully lower the transmission and remove it from the vehicle.
  • Remove the old clutch pressure plate and disc from the flywheel.

Installing the South Bend Clutch

With the old clutch removed, you can now install the South Bend clutch:

  • Clean the flywheel surface to ensure proper contact with the new clutch.
  • Position the new clutch disc onto the flywheel using the clutch alignment tool.
  • Install the pressure plate over the clutch disc and hand-tighten the bolts.
  • Torque the pressure plate bolts to the manufacturer’s specifications.

Reinstalling the Transmission

After the new clutch is installed, it’s time to reinstall the transmission:

  • Lift the transmission back into place and align it with the engine.
  • Reinstall the transmission mount bolts and torque them to specifications.
  • Reconnect the bellhousing bolts to secure the transmission to the engine.
  • Reinstall the driveshaft by sliding it back into place and bolting it to the differential.

Final Steps

Once the transmission is secured, follow these final steps:

  • Reconnect the negative battery terminal.
  • Check the transmission fluid level and add fluid if necessary.
  • Start the engine and test the clutch operation.
  • Take the vehicle for a short test drive to ensure everything is functioning correctly.

Performance Gains

Installing a South Bend clutch can lead to several performance gains for your Subaru WRX:

  • Improved power transfer from the engine to the wheels.
  • Enhanced durability and resistance to slipping under high torque conditions.
  • Better engagement feel and responsiveness during gear shifts.

Conclusion

By following this step-by-step guide, you can successfully install a South Bend clutch on your Subaru WRX. Enjoy the improved performance and driving experience that comes with your new clutch!