Why do we have to think about these angles at all? We wouldn't if the engine, transmission, driveshaft, and pinion all shared the same centerline. As it is, these components are never on the same ...

A common cross-type, single U-joint loses strength as the driveline angle increases. The installation of a suspension lift kit prompts the need for a heavy-duty, constant-velocity (CV) rear driveline.

Early ideas of universal joints (or U-joints) have dated back thousands of years and seem to originate from multiple sources. However, about a century ago, a young engineering graduate, Clarence W.