How to Replace Driveshaft U Joints 07-14 Chevy Suburban

Introduction

This tutorial provides a step-by-step guide on how to replace the driveshaft U-joints in a 2007-2014 Chevy Suburban. If your vehicle is making a clicking noise during acceleration or when putting a load on the rear axle, it may indicate worn U-joints. This process is similar for other vehicles within the same model range.

Step 1: Diagnose the U-Joints

• Check the U-joint near the transfer case.
• Hold the driveshaft and gently move it back and forth to feel for play.
• Repeat the process at the rear differential and look for significant movement. If there is noticeable play, the U-joint needs replacement.

Step 2: Prepare the Vehicle

• Ensure the vehicle is on a flat surface and securely lifted.
• Place a drain pan under the driveshaft to catch any leaking fluids.

Step 3: Mark the Driveshaft and Yokes

• Use a marker to index the position of the driveshaft and yoke. This helps in aligning components during reassembly.
• Mark both the driveshaft and the yoke on each side.

Step 4: Loosen and Remove the Driveshaft

• Apply rust penetrant to the U-joint bolts (11mm).
• Use an 11mm wrench to break the bolts free.
• Remove the bolts completely with your fingers.
• Carefully pull the driveshaft out of the transfer case using a pry bar, with assistance from another person if needed.

Step 5: Remove Old U-Joints

• Inspect the U-joints. If they are rusted or feel bound, they need replacement.
• Use needle-nose pliers to remove snap rings from both ends of the U-joint.
• If the rings are stuck, apply rust penetrant and use a punch and hammer to loosen them.
• Once the snap rings are removed, use a vice or hammer to push the U-joint caps out.

Step 6: Clean the Driveshaft

• Use a wire brush to remove rust and debris from the driveshaft and yoke.
• File down any burrs or raised edges around the U-joint holes to ensure smooth installation of the new U-joint.

Step 7: Install New U-Joints

• Position the new U-joint so that the grease fitting is accessible.
• Insert the U-joint into the driveshaft and slide the caps on either side.
• Use a vice or hammer to push the caps into place until they reach the retaining clip grooves.
• Install the retaining clips securely.

Step 8: Reinstall the Driveshaft

• Align the driveshaft with the transfer case and yoke.
• Slide it back into place, ensuring the indexed marks align.
• Replace the bolts and tighten them to the manufacturer’s torque specifications (typically 18 ft-lbs).

Step 9: Grease the U-Joints

• Use a grease gun to apply grease to the new U-joints. This helps ensure smooth operation and longevity.

Conclusion

You have successfully replaced the driveshaft U-joints in your Chevy Suburban. Regular maintenance of U-joints is crucial for vehicle performance and safety. If you continue to hear noises after replacement, it may be necessary to inspect other drivetrain components. For further assistance or parts, visit 1A Auto.