The transmission filter helps to eliminate dirt and contaminants from the automated transmission fluid, which serves numerous functions, which include: There are 2 major forms of transmissions: automatic and handbook. Computerized transmissions use fluid couplings as an alternative to a clutch, and they generally have more gears than handbook transmissions. https://jaidenkwelr.blogmazing.com/33236108/an-unbiased-view-of-filter-gearbox