回复：不难, 但不好书面描述, 你可以去车件店买本你车的

Yeah, acutally I already got some infos, the only problem is that if all stuffs will fall apart as soon as i remove the drum so that i would neve figure it out how to reinstall them back to place (someone claimed to have such disasterous expericence), and secondly, will it work? do i need speical adjusement for it to work well? Acutally, I would like to collect as much infos as possible before i really start, so any suggestions from you guys are highly appreciated.