History of my lumina ss

[luminass]

Anyone here ever owned a lumina ss , original reg EU03 EPD I'm trying to find any history relating to my car and who and what has been changed, s been talking to roger at mr today and it seems that my rear hsv shocks and rear toe adjusting arms are not standard ? This is these one time I've been told this but it looks fairly original , but I've got to check I the set up as this could be causing my differential problems
Any info (good or bad) would be useful (I know it's been repaired on NSF )