i just got my neww precision turbo in yesterday. the thing is both the housing is position wrong. is it hard to take off the housings and reposition it? what do i have to look out for? are the bearings going to fall out? what i am putting it on is the rev hard cast iron mani bottum mount. oh one more is the big rectangle hole the oil return outlet and the small circle hole w/ threading the oil feed line hole? just want to make sure cause it was confusing how the housings were position. thanks for any help given.