Just broke a piece of my case putting in bearings pretty pissed considering I press bearings a lot at work but anyway I need either just the side with the drain bolt or both side would prefer just the one but lmk
Generally, blaster bearings (and pretty much all vertical split dirtbike/atv engines) aren't pressed in at all rather sweated in. Get that aluminum case piping hot ~350°F and the steel bearing will slide in or out. Their rate of thermal expansion is great enough, that the interference fit used to hold it in place is no more.
Yeah, the transmission input shaft bearing. I don't want to make you feel any worse about it.... but that bearing pushes in and out with no effort. That's why it has that retainer plate with the two phillips head screws in it.