Question

A driveshaft universal joint (U-joint) is dry of lubricant and found to be loose. Which is the proper repair?

A Grease and tighten the U-joint.
B Weld the U-joint.
C Replace the U-joint.
D Tighten the U-joint.

Answer 1

The proper repair for a dry and loose driveshaft universal joint (U-joint) is to replace it.

Step-by-step explanation:

The proper repair for a driveshaft universal joint (U-joint) that is dry of lubricant and loose is to replace the U-joint. Greasing and tightening the U-joint may temporarily address the issue, but it is not a proper or long-term fix. Welding the U-joint is not recommended as it can compromise the structural integrity of the driveshaft.