Reverse gear is usually marked 'R' around the selector. The ahead-drive clutch is disengaged and the initial ring equipment freewheels. With this transmission, when overdrive is engaged, a shaft that is hooked up to the housing of the torque converter (and that is bolted to the flywheel on the engine) https://israelpgugr.blog2freedom.com/33792464/gearbox-auto-options