im also wondering if its better to replace the tranny or rebuild it. I have 1st and 2nd in manual mode but that's it. and if anyone could tell me what they think could be going on will be greatly appreciated

hey all this is my first time owning a Volvo and I picked up a 2001 s80 t6 before finding out how crappy the trannies are and was wondering if anyone have the step by step of dropping the sub frame.