Technician A says wheel bearings on 4WD vehicles are permanently sealed and lubricated and do not require disassembly and service after the hubs have been submerged in water. Technician B says a frequent cause of wheel bearing failure is the use of oversized tires mounted on wheels with substantial offset. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because using oversized tires or wheels with a significant offset can lead to increased stress and strain on wheel bearings, potentially causing premature failure. Technician A is incorrect because even if wheel bearings are sealed, submersion in water, especially if it's contaminated, can lead to the ingress of water and contaminants, necessitating inspection or service.

Technician a Says Wheel Bearings on 4WD Vehicles Are Permanently