Avoid These Five Mistakes When Installing U-Joints

Maintaining a vehicle involves tackling a range of tasks, and installing universal joints (U-joints) is one of those critical procedures that can’t be overlooked. These components play a pivotal role in transmitting power between two shafts at varying angles. U-joint installation is straightforward, but there are several potential pitfalls you should be aware of.

In this blog post, we’ll explore five of the most common mistakes or difficulties encountered when installing U-joints in a car and provide insights on how to avoid them.

1. Lack Of Proper Lubrication

One of the most significant mistakes during U-joint installation is failing to provide sufficient lubrication. U-joints operate under high levels of stress, and ensuring they have adequate lubrication is crucial for their longevity and performance. Ignoring this step can lead to premature wear, excessive noise, and even U-joint failure. Always use the recommended lubricant and ensure thorough, proper lubrication during installation.

2. Misalignment

Misalignment can be a challenge during U-joint installation. Proper alignment ensures that the U-joint operates smoothly and without added stress. Failing to align the yokes correctly can result in vibrations, increased wear, and potential damage to the drivetrain components. Take the time to carefully align the U-joint components and double-check their positioning before securing them in place.

3. Improper Torque

Applying the correct torque specifications when tightening U-joint bolts is crucial. Over-tightening can lead to distortion and premature failure, while under-tightening might result in loosening and compromised performance. Always refer to the manufacturer’s specifications for torque values and use a reliable torque wrench to ensure accurate and consistent tightening.

4. Incorrect Phasing

Phasing refers to the alignment of the U-joint’s yokes in relation to each other. Installing U-joints with incorrect phasing can lead to driveline vibrations, noise, and even damage to other components. Make sure to mark the original positions of the yokes before disassembly and replicate the phasing during reassembly to maintain a smooth, balanced driveline.

5. Neglecting U-Joint Angle

U-joints are designed to operate within specific angle ranges. Exceeding these angles can lead to accelerated wear and reduced U-joint lifespan. If the suspension has been modified, carefully measure the angles between the shafts and use appropriate shims or adjustable components to ensure the U-joint operates within its recommended angle limits.

GMB Is Your Source For Quality U-Joints

If you need U-joint needs, GMB has you covered. You can trust that we carry the highest quality products for cars, trucks, and SUVs because:

  • We have been an industry-leading OEM and aftermarket automotive parts manufacturer since 1943.
  • We have locations on the east and west coasts in the US and global locations in Asia and Europe.
  • We believe your success is our future, so we offer the products and support you need.

If you have any questions about our U-joints or any of our products, please get in touch with us.


Posted in

Stay current!

Sign up here to get the latest news
and updates on all things GMB.

Sign Up To Receive GMB News & Updates!

  • This field is for validation purposes and should be left unchanged.