Repair your driveline with the wide selection of U-joints for your 2011-2016 Chevy/GMC 6.6L LML Duramax. If the U-joint fails, it could leave you stranded or cause serious damage if the driveshaft dislodges while you are driving. A bad U-joint can cause a clunking sound or jerkiness while driving, particularly when pressing on or letting off the accelerator pedal. A bad U-joint can also cause vibrations at certain speeds, originating from the center or rear of the vehicle. Over time due to wear and tear from the lack of lubrication, heavy-duty tasks, modifications to the vehicle, and even your driving habits can ultimately lead to universal joint failure. Shop all the top brands including Nitro Gear & Axle, Yukon Gear & Axle, and more!