I have already seen this list and thats why I was asking. The thread you have linked suggests the 350z and g35 coupe can come with both an open base diff or an LSD version. How can I tell by looking at the diff itself, if it is an LSD or not? You can't see by just turning the axles because even if it is an LSD, it is a VLSD and it would only turn both axles when the liquid heats up. Is there any markings on the diff that would tell me or if I opened it up would there be anything obvious telling me it is an LSD? If there is anyone else that could chime in I would greatly appreciate it.