Question

While inspecting the rear wheel axle studs on a real wheel drive vehicle, the technician notices that one stud is damaged. Technician A says that all the wheel studs on the assembly should be replaced. Tech B says that the thread pitch and diameter of the replacement stud should be the same as the original. Who is correct?

Answer 1

Technician B is correct, as the thread pitch and diameter of the replacement stud must match the original to ensure proper fitting. Replacing all studs is not always necessary unless advised by the manufacturer or if other studs are also compromised.

Step-by-step explanation:

The question at hand involves the replacement of wheel axle studs on a rear wheel drive vehicle. When one stud is damaged, Technician B is correct in saying that the thread pitch and diameter of the replacement stud must match the original. This is because varying thread pitches or diameters can cause improper seating of the wheel or uneven stress distribution, leading to possible wheel detachment or further damage. However, there is no hard rule that dictates the replacement of all wheel studs on an assembly if only one is damaged as suggested by Technician A; this can depend on the condition of the other studs and the manufacturer's recommendations.