Used Main Drive Gear 16 Tooth, fits Ford 3 speed transmission 1939 through 1948 passenger and 1939 - 1952 pick up.  Uses 1 3/8 10 spline clutch disc.  Ford part number 81A-7017. This transmission gear made by Warner Gear USA, it is in nice condition. This gear has section of synchro engaging teeth missing like Zephyr gear. Warner Gear part number WT 191-16P.