Tach, since I have already received a cancellation from 2 companies to my wishes I try it sometimes in a large forum. I am looking for a company that can knit my currently far too short tuned DGU gearbox into a long 5-speed, which also withstands a good 600 NM load. Also the option of buying another (and matching to my AHK engine) I pull into consideration if it is not possible to convert my currently existing gearbox. Who knows such gear specs? Greeting , Lars