How to Remove a G35/G37 Sedan Automatic Transmission

Introduction

This tutorial provides a comprehensive guide on how to remove the automatic transmission from your Infiniti G35 or G37 Sedan. Whether you’re replacing a faulty unit or upgrading to a high-performance model, this step-by-step process will enhance your understanding of the drivetrain and equip you for future maintenance tasks.

Step 1: Gather Your Tools

Before starting the removal process, ensure you have the necessary tools. Here’s a list of recommended tools:

• Milwaukee M12 3/8" Ratchet
• Milwaukee Stubby 3/8"
• Milwaukee Impact Wrench 1/2”
• GearWrench Wobble Socket 3/8 Set
• Hose Remover Pliers
• Swivel/Extension Kit (1/4, 3/8, 1/2)
• Screwdriver Set
• Starter Tool Kit
• Advanced Tool Kit

Make sure all tools are in good condition and ready for use.

Step 2: Prepare the Vehicle

1. Safety First:

   • Park the car on a flat surface.
   • Engage the parking brake and disconnect the battery to prevent electrical issues.

2. Lift the Vehicle:

   • Use a hydraulic lift or jack stands to raise the car for better access to the transmission.

3. Remove Underbody Panels:

   • If applicable, remove any underbody panels or covers that obstruct access to the transmission.

Step 3: Drain the Transmission Fluid

1. Locate the transmission fluid drain plug.
2. Use a suitable container to catch the fluid as you remove the plug.
3. Allow the fluid to fully drain before proceeding.

Step 4: Disconnect Components

1. Remove Drive Shaft:

   • Unbolt the drive shaft from the rear differential and slide it out of the transmission.

2. Disconnect Linkage:

   • Detach the transmission shift linkage and any electrical connectors attached to the transmission.

3. Remove Crossmember:

   • Unbolt and remove the transmission crossmember for additional support.

Step 5: Unbolt the Transmission

1. Access the Bell Housing Bolts:

   • Use a ratchet and the wobble socket to reach bell housing bolts that may be difficult to access.

2. Remove All Bolts:

   • Carefully remove all bolts securing the transmission to the engine. Keep them organized for reinstallation.

Step 6: Lower the Transmission

1. Use a Transmission Jack:

   • Position a transmission jack under the transmission.

2. Carefully Lower:

   • Slowly lower the transmission while ensuring that no components are still connected.

3. Remove the Transmission:

   • Once fully lowered, slide the transmission out from under the vehicle.

Conclusion

Removing the automatic transmission from your Infiniti G35 or G37 Sedan is a detailed process that requires careful preparation and execution. By following these steps, you can successfully complete the task while gaining valuable insight into your vehicle's mechanics. After the removal, consider inspecting related components for wear and preparing for any upgrades or replacements. If you found this guide helpful, consider subscribing for more DIY automotive tutorials.