I'm going back to my earlier post of a sump screen. I had a 1900 and a 2110 and both of them had a suction tube coming off the side of the trans case. It also had a round cover with 3 or 4 bolts and a screen mesh tube filter inside. Maybe you have one and maybe you don't but I don't have any other good ideas. A parts dealer could tell you if the 1910 had one..