The filter is actually a key part of the transmission system, meant to avert steel shavings through the gears, together with other Grime and debris, from contaminating the transmission fluid. It sits in between the transmission pan (that collects excess fluid) and the tube that regulates the transmission fluid force. https://filtergearbox50471.spintheblog.com/34494182/indicators-on-filter-gearbox-you-should-know