Clutch Upgrade Guide Installation: Replacing a Clutch in a 300-hp Subaru Wrx

Upgrading the clutch in a 300-hp Subaru WRX is essential for improved performance and reliability. This guide will walk you through the installation process step by step, ensuring that you have all the necessary tools and knowledge to complete the task successfully.

Tools and Materials Needed

  • Socket set
  • Torque wrench
  • Clutch alignment tool
  • Jack and jack stands
  • Transmission fluid
  • New clutch kit
  • Flywheel (optional)
  • Safety glasses
  • Mechanic’s gloves

Preparation Steps

Before starting the installation, make sure to prepare your workspace and vehicle. Follow these steps to ensure a smooth process:

  • Park the Subaru WRX on a flat surface.
  • Disconnect the negative battery terminal.
  • Lift the vehicle using a jack and secure it with jack stands.
  • Remove the front wheels for better access.

Removing the Old Clutch

With the vehicle prepared, you can now begin removing the old clutch. Follow these steps:

  • Remove the transmission by unbolting it from the engine.
  • Support the transmission with a jack while you remove the bolts.
  • Carefully slide the transmission away from the engine.
  • Remove the old clutch pressure plate and disc from the flywheel.
  • Inspect the flywheel for any damage and resurface or replace if necessary.

Installing the New Clutch

Now that the old clutch is removed, it’s time to install the new clutch kit. Follow these steps:

  • Clean the flywheel surface to ensure a proper seal.
  • Align the new clutch disc on the flywheel using the clutch alignment tool.
  • Install the new pressure plate over the clutch disc.
  • Tighten the pressure plate bolts in a crisscross pattern to the manufacturer’s specifications.

Reinstalling the Transmission

With the new clutch installed, you can now proceed to reinstall the transmission. Follow these steps:

  • Carefully slide the transmission back into place.
  • Align the transmission with the engine and secure it with bolts.
  • Reattach the transmission mount and any other components removed earlier.
  • Reconnect the negative battery terminal.

Final Steps

After the transmission is reinstalled, there are a few final steps to complete:

  • Check and refill the transmission fluid if necessary.
  • Reinstall the front wheels and lower the vehicle.
  • Start the engine and allow it to idle for a few minutes.
  • Test drive the vehicle to ensure the new clutch is functioning properly.

Conclusion

Replacing the clutch in a 300-hp Subaru WRX can significantly enhance performance. Following this guide will help you install the new clutch effectively and efficiently. Always remember to follow safety precautions and consult your vehicle’s manual for specific details.