Reverse gear is generally marked 'R' about the selector. The ahead-generate clutch is disengaged and the initial ring gear freewheels. If the two sun gears convert in the same course, the planet gears lockup as they can only spin in reverse Instructions. This locks the ring gear on the planets https://marcoatguf.bloggazzo.com/32883065/rumored-buzz-on-gearbox-auto