Gr86 Suspension Installation: Step-by-step Instructions for Beginners and Pros

The GR86 is a popular sports car that offers an exhilarating driving experience. One of the most effective ways to enhance its performance is through suspension upgrades. This article provides step-by-step instructions for both beginners and experienced enthusiasts on how to install a new suspension system on a GR86.

Tools and Materials Needed

Before starting the installation, gather all necessary tools and materials to ensure a smooth process. Here’s a list of what you will need:

  • Socket set
  • Wrench set
  • Torque wrench
  • Jack and jack stands
  • Suspension kit (coilovers, struts, etc.)
  • Spring compressors (if applicable)
  • Safety glasses
  • Gloves

Preparation Steps

Before diving into the installation, it’s crucial to prepare your workspace and vehicle. Follow these preparation steps:

  • Park the GR86 on a flat surface.
  • Engage the parking brake.
  • Loosen the lug nuts on the wheels without removing them.
  • Jack up the vehicle and secure it with jack stands.

Removing the Old Suspension

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

  • Remove the front wheels for access to the suspension.
  • Disconnect any brake lines or sensors attached to the struts.
  • Unbolt the strut assembly from the top and bottom mounts.
  • Carefully remove the strut assembly from the vehicle.
  • Repeat the process for the rear suspension components.

Installing the New Suspension

Now that the old suspension is removed, you can install the new components. Follow these steps for installation:

  • Begin with the front suspension by positioning the new strut assembly in place.
  • Secure the strut assembly to the top and bottom mounts using the original bolts.
  • Reconnect any brake lines or sensors that were disconnected.
  • Install the new springs if applicable, using spring compressors if necessary.
  • Repeat the installation process for the rear suspension components.

Final Adjustments

After installing the new suspension, it’s essential to make final adjustments to ensure optimal performance:

  • Check all bolts and nuts for proper torque using a torque wrench.
  • Reinstall the wheels and hand-tighten the lug nuts.
  • Lower the vehicle from the jack stands.
  • Torque the lug nuts to the manufacturer’s specifications.
  • Perform a test drive to assess the new suspension’s performance.

Conclusion

Installing a new suspension on your GR86 can significantly improve its handling and ride quality. By following these step-by-step instructions, both beginners and pros can successfully upgrade their suspension system. Always remember to prioritize safety and double-check your work for the best results.