Clutchless A833

That’s a split coupler ramped design. When the next higher gear is engaged, the main shaft accelerates and the ramps kick the coupler off of the lower gear to disengage it. The straight cut gears are to reduce load on the main shaft bearings (but I’m thinking maybe to also prevent thrust from disengaging the couplers?). If you lift off the throttle in one of the ramped engagement gears, the transmission automatically pops into neutral. I’m curious how long the stock iron case stood up to the shock loads before something finally gave. I imagine that it had to be gone through after every event, at the least.