Clevite 77 is the standard by which all other bearings are judged. Clevite was the original OEM supplier Chrysler used for engine bearings back when our Mopars were rolling off the assembly line, and now 40 years later there is no reason to settle for any less. Clevite is now owned by the Dana Corporation (yes, the same Dana that made the famous rear ends for our Mopars,) and they have been proven countless times in nearly every form of motorsports since they were first introduced in 1929. All the Clevite bearings we sell are still AMERICAN MADE in the good ol' USA!