When servicing a drive axle, Technician A says that it's a good idea to tape the U-joint caps to prevent them from coming off. Technician B says that needle bearings are used with these type U-joints. Which technician is correct?

In servicing a drive axle, both Technician A and Technician B are correct in their statements.

Technician A's suggestion to tape the U-joint caps is a practical and commonly used method to ensure that the caps do not come off during the servicing process. This is particularly important because the U-joint caps house the bearings, and losing a cap could lead to significant complications, including potential damage to the U-joint assembly or other drivetrain components.

Technician B accurately states that needle bearings are used within these types of U-joints. Needle bearings are designed to reduce friction and wear, allowing for smooth rotation and improving overall efficiency in the driveline. They help to support the load and are essential for the proper functioning of U-joints in certain applications.

Thus, both technicians provide valid and accurate information regarding the handling and operation of U-joints in a drive axle.