727 No forward or reverse

Thats what I am ready for, just the way it happened makes me think. Planned to do total rework of it in winter anyway... Still this is wierd. I mean this trans never slipped once, worked normally until this moment. No strange noises or anything like that. I was accelerating slowly in 2nd and then "ding" and no more driving, felt kinda like rolling in neutral. Kinda wierd thats all, usually there are some sings of problems comming soon but not here.