alright people.. im getting a new turbo with a different compresser wheel and stuff.. but i have to keep the wastegate side of my exhaust. ive found that the shaft with the blads on moves a litte up and down - side to side when wobbled and a small crack under my wastegate flap. will these be a problem? if so how is the shaft movement fixed? also when i fit this turbo do i assume i have to fit it to my shaft, so how do i? and also how do we seperate the wastegate side from turbo side? or do we need tot ake it to a mechanics?