Omega B – Can the Y25DT AT transmission be used on the V6?

Hello all, I have a 2.6 V6 Omega with automatic transmission unfortunately shows this often service and bangs the gears also quite hard in, we have already made a transmission oil change and nevertheless it ticks further around turns sometimes also simply not. Now I have a little browsed around and have seen that the diesel transmission from the last 2.5 DTI is a 5 gear transmission in hope that it is then even better translated I would like to convert there already Experiences, tips, info? Mfg Darius