CCIYU–CVAxle Shaft–High Performance Tips1: When You Need to Replace an Axle 1: A “clicking” sound or knocking noise when turning Sometimes described as a loud click and sometimes as a thump, once you hear it the sound is unmistakable. It occurs when you are driving the vehicle and is due to loose connections in a worn CV axle, and it is best to have the problem checked out by a professional immediately. 2. There is grease on the inside or around the edge of the tire The CV joint shoe contains grease to prevent it from leaking out as the shaft rotates. If the starter develops a leak, the resulting lack of lubrication can quickly lead to CV joint failure. 3. Vibration while driving This is a difficult question because there are many things that can cause vibration while driving. However, if the vibration is excessive, increases in speed, or gives your drive an unusual “jumping” feeling, it may be due to the CV shaft. Whatever the cause of the vibration, it is important to have your vehicle checked; if it vibrates too much, it may be difficult to control. Tips 2: How to buy a suitable axle Note 1: Check the vehicle year, make, model and installation location in our store. Compare whether the original axles of your vehicle match our products. Are the parts the same Note 2: If you are unsure, please contact us via eBay message and include the year, make and model of your vehicle. Let us know which products you are interested in so that we can check the accessories and contact you as soon as possible. Tips 3: How to install a suitable axle Step 1: Confirm whether the axle needs to be replaced. Step 2: Remove the main shaft and replace the faulty axle. Step 3: Tighten all the fibers to factory specifications. Step 4: Top up the missing transmission fluid. Check your tire pressure. Step 5: Road test. Professional installation is highly recommended!