Table of Contents
Replacing the stock 3-speed automatic transmission with a Tremec TKO in your A-body Mopar can significantly enhance performance and driving experience. This guide will walk you through the necessary steps to complete the installation.
Tools and Materials Needed
- Tremec TKO transmission kit
- Transmission jack
- Socket set
- Wrenches
- Torque wrench
- Drill and drill bits
- Transmission fluid
- New transmission mount
- Shifter kit
- Safety glasses
- Gloves
Preparation
Before starting the installation, ensure your vehicle is securely lifted and supported. Disconnect the battery to prevent any electrical issues during the process.
Removing the Old Transmission
Begin by draining the transmission fluid from the stock 3-speed automatic. Use a suitable container to catch the fluid.
Next, remove the driveshaft by unbolting it from the rear end and sliding it out of the transmission. Mark the orientation of the driveshaft for reinstallation.
Disconnect the transmission linkage and any electrical connectors. Support the transmission with a jack and remove the bolts securing it to the engine.
Carefully lower the transmission and remove it from the vehicle. Ensure that you have adequate space to work and maneuver the new Tremec TKO into place.
Installing the Tremec TKO
Begin the installation by placing the Tremec TKO transmission onto the transmission jack. Align it with the engine and carefully raise it into position.
Secure the transmission to the engine using the provided bolts. Be sure to follow the manufacturer’s torque specifications for proper installation.
Install the new transmission mount, ensuring it is properly aligned with the chassis. This may require drilling new holes in the crossmember for proper fitment.
Connecting the Driveshaft and Linkages
Reinstall the driveshaft, ensuring it is oriented correctly as per your earlier markings. Bolt it back into place securely.
Reconnect the transmission linkage and any electrical connectors that were removed during the disassembly. Ensure everything is secured and properly aligned.
Shifter Installation
Install the shifter kit according to the manufacturer’s instructions. This may involve cutting a hole in the floor of your A-body Mopar for the shifter to protrude through.
Once the shifter is installed, ensure it operates smoothly through all gears. Adjust as necessary to achieve the desired feel and engagement.
Final Steps
Fill the Tremec TKO with the appropriate transmission fluid as specified by the manufacturer. Check for any leaks around the transmission and connections.
Reconnect the battery and start the vehicle. Test drive the car to ensure that the transmission shifts smoothly and operates as expected.
After a short test drive, check the fluid levels again and top off as necessary. Regular maintenance will ensure the longevity of your new transmission.
Conclusion
Replacing the stock 3-speed automatic with a Tremec TKO can greatly improve your A-body Mopar’s performance. With careful preparation and attention to detail, this installation can be a rewarding project that enhances your driving experience.