OEM filter is the dacron(fabric) filter. It is the large style. Used from 1966-2001 for the 727 and from 1966-2003 on the 904. The smaller brass one used on both the 904 and the 727. Most often the brass screen used in the aftermarket for high performance use as it supposedly has less restriction than the dacron style. When I serviced the transmission on the Duster I bought new in '71, it had the dacron filter in it, and my Challenger also had the dacron style. In all my years in the transmission parts industry the only time we sold the brass filter was if someone asked for it.
