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The GR86 is a popular choice among car enthusiasts for its performance and handling. Upgrading to a coilover suspension can significantly enhance the driving experience. In this article, we will provide you with detailed, step-by-step instructions on how to install a coilover suspension on your GR86.
Tools and Materials Needed
- Coilover suspension kit
- Jack and jack stands
- Socket set
- Wrench set
- Pliers
- Torque wrench
- Spring compressors
- Safety glasses
- Gloves
Preparation
Before you begin the installation process, it is essential to prepare your workspace and gather all the necessary tools and materials. Make sure to wear safety glasses and gloves to protect yourself during the installation.
Step 1: Lift the Vehicle
Using a jack, lift the front or rear of the vehicle, depending on which suspension you will be working on first. Once lifted, secure the vehicle with jack stands to ensure it is stable and safe to work on.
Step 2: Remove the Wheel
Using a socket set, remove the lug nuts and take off the wheel to access the suspension components. Repeat this step for the other side if you are replacing the coilovers on both the front and rear.
Step 3: Disconnect the Stock Suspension
To remove the stock suspension, you will need to disconnect several components:
- Remove the bolt securing the sway bar link to the strut.
- Detach the brake line from the strut.
- Unbolt the strut from the lower control arm.
- Remove the top strut mount bolts located in the engine bay.
Step 4: Remove the Stock Strut
Once all the necessary components are disconnected, carefully remove the stock strut from the vehicle. You may need to use a spring compressor if the strut is still under tension.
Step 5: Install the Coilover Suspension
With the stock strut removed, it’s time to install the new coilover suspension:
- Position the coilover into the strut mount location.
- Secure the top mount with the provided bolts.
- Reattach the coilover to the lower control arm using the provided hardware.
- Reconnect the brake line and sway bar link.
Step 6: Adjust the Ride Height
Before tightening everything down, adjust the ride height of the coilovers to your desired setting. Make sure to check the manufacturer’s specifications for optimal settings.
Step 7: Repeat for the Other Side
Repeat steps 3 to 6 for the other side of the vehicle. Ensure that both sides are adjusted to the same height for balanced handling.
Step 8: Reinstall the Wheels
Once both coilovers are installed, it’s time to reinstall the wheels. Place the wheels onto the hubs and hand-tighten the lug nuts.
Step 9: Lower the Vehicle
Carefully lower the vehicle back to the ground using the jack. Once the vehicle is on the ground, use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.
Step 10: Final Checks
After the installation is complete, perform a final check of all bolts and connections to ensure everything is secure. Take the car for a short test drive to confirm that the suspension is functioning correctly.
Conclusion
Installing a coilover suspension on your GR86 can greatly enhance its performance and handling. By following these step-by-step instructions, you can ensure a successful installation. Always remember to double-check your work and consult a professional if you encounter any issues.