I' converting my 86 rx7 from 4 lug to 5. I allready have the front end peices. What Do I need to convert the rear? Do i just need the hub or will i need the hole trailing arm assembly? If you could get me a list of what I need or where to go on the net that would be cool. I just found a wrecking yard over here that have some good peieces. Let me know whats needed Thanks ROB