My JDM Evo 7 is doing 200K service currently. I've changed the diff, tcase and transmission fluid several times before. I've also bled the ACD/AYC system but I saw this video "https://www.youtube.com/watch?v=CC9BoURu0gQ" which seemed to suggest in the diff at least, there is a separate part to top up the AYC fluid. Is it the same Diaqueen ATF SP III or will use Redline MT90? Is this a good time to change the ACD and AYC clutch packs or should I leave well enough alone?