A universal joint, often called a U-joint, allows a driveshaft to transmit power through changing angles. Wear or binding may produce clunking, squeaking, or vibration, depending on the condition of the joint.
Similar symptoms can come from other components, and a joint can bind without obvious looseness. Checking movement, condition, and operation helps determine whether replacement is needed.
Certified Transmission in Council Bluffs can inspect suspected U-joint problems. If a new clunk or vibration is getting worse, arrange an inspection rather than waiting for the joint to fail.