just assembled a m-20 wide ratio muncie 4 speed transmission u might like/ used 64-65 front case (good ones hard to come by) bored for 1 inch pin/ used 66-67 gears and parts/ assembled with overhaul kit/ all new bearings/gaskets/syncro's/ etc etc/ warranty/ put in car, if u like urs, if not tell me what u don't like or take out of car and get money back/ any questions just call// also used 69 tail housing with speedo on pass sside/ no leaks