I came across this topic on Hybridz about upgrading the R200 LSD.
Our H190 LSD are nearly the same so this this count for us too?
http://forums.hybridz.org/topic/52029-adding-clutches-to-the-clsd-r200/
If so, can I use these clutches:
www.nengun.com/nismo/lsd-repair-parts
And which one do I use, the 1,75mm one or the 1,85mm one.