How to Install a Dodge Hellcat 8-speed Transmission Upgrade: a Complete Step-by-step Guide

Upgrading the transmission of your Dodge Hellcat to an 8-speed transmission can significantly enhance performance and driving experience. This guide will provide you with a comprehensive, step-by-step process to install the upgrade effectively.

Tools and Materials Needed

  • 8-speed transmission kit
  • Socket set
  • Torque wrench
  • Transmission fluid
  • Jack and jack stands
  • Safety goggles
  • Gloves
  • Shop manual for your specific model

Preparation Steps

Before you begin the installation, ensure that you have a safe working environment and all necessary tools and materials at hand. Follow these preparation steps:

  • Park the vehicle on a flat surface.
  • Engage the parking brake.
  • Disconnect the battery to prevent any electrical issues.

Removing the Old Transmission

The first major step is to remove the existing transmission. Follow these instructions carefully:

  • Lift the vehicle using a jack and secure it with jack stands.
  • Drain the transmission fluid into a suitable container.
  • Disconnect the transmission cooler lines.
  • Unbolt the transmission from the engine using the socket set.
  • Remove the drive shaft by unbolting it from the rear differential.
  • Carefully slide the old transmission out of the vehicle.

Installing the New 8-Speed Transmission

With the old transmission out, it’s time to install the new 8-speed transmission. Follow these steps:

  • Position the new 8-speed transmission under the vehicle.
  • Carefully lift and align the transmission with the engine.
  • Securely bolt the transmission to the engine using the socket set.
  • Reinstall the drive shaft, ensuring it is properly aligned.
  • Reconnect the transmission cooler lines.
  • Fill the new transmission with the appropriate transmission fluid.

Finalizing the Installation

Once the new transmission is in place, you need to finalize the installation. Follow these steps:

  • Reconnect the battery.
  • Start the engine and check for any leaks around the transmission.
  • Test drive the vehicle to ensure smooth shifting and performance.

Tips for a Successful Installation

Here are some tips to ensure your transmission upgrade goes smoothly:

  • Always refer to the shop manual for specific instructions related to your model.
  • Double-check all connections and bolts to avoid any issues post-installation.
  • Consider having a friend assist you during the installation for extra safety.

Conclusion

Upgrading to an 8-speed transmission in your Dodge Hellcat can greatly enhance your driving experience. By following this step-by-step guide, you can ensure a successful installation. Always remember to prioritize safety and consult professionals if you encounter any difficulties during the process.