Bearings are what enable the gears to rotate efficiently. They are usually designed out of bronze or brass, and they fit into races (or grooves) from the gearbox housing. Aged automatic transmissions generally have metal mesh filters. These filters are notable for Increased longevity, because it should essentially be replaced https://filter-gearbox44062.thenerdsblog.com/39882511/little-known-facts-about-filter-gearbox