U-Joint Replacement Services at Sunland Tire

What Are U-Joints and Why Are They Important?

Universal joints (U-joints) are essential flexible couplings that allow the transmission, driveshaft, and differentials to work together, ensuring smooth power transfer to your vehicle’s wheels. Since the driveshaft must adjust to changes in angle and alignment, U-joints provide the necessary flexibility to maintain seamless movement.

A U-joint consists of four trunnions (legs) extending from a central cross, with bearing caps that pivot inside the yoke as the driveshaft rotates. While many original equipment U-joints are sealed, some aftermarket U-joints require periodic lubrication. Understanding which type is installed in your vehicle helps determine proper maintenance intervals and when a replacement is needed.

Signs You Need U-Joint Replacement

Over time, U-joints wear out due to continuous stress, lack of lubrication, or rust buildup. Warning signs of a failing U-joint include:
✅ Clicking, squeaking, or grinding noises while driving
✅ Vibrations or rattling sounds from the drivetrain
✅ Excessive play in the driveshaft
✅ Difficulty turning or noticeable shaking

If left untreated, a worn U-joint can cause severe drivetrain damage, leading to costly repairs. Routine inspections can catch early signs of wear, preventing breakdowns and ensuring safe operation. If you suspect a faulty U-joint, don’t wait—Sunland Tire’s expert technicians can diagnose and replace your U-joints quickly and efficiently.

We proudly serve customers in La Verne, CA, Covina, CA, Upland, CA, and surrounding areas.