The multi-lip seal keeps grease in and contaminants out, while at the same time, offering maximum retention.
There are three types of modern driveshafts with multiple configurations.
Andrew Markel discusses the relationship between motor mounts and U-joints, and how position changes in the engine can affect U-joints and CV axles.
Andrew Markel shows how a universal joint can be lubricated during replacement or maintenance, as well as the importance of lubrication to its parts.
Servicing the ball joints and U-joints on monobeam axles requires a fair amount of steering knuckle disassembly just to access these components.