In the process of manual swapping my '04 RS with an 01-03 Legacy GT JDM trans. Having this trans and diff means I should have an LSD from what I've read, but as far as finding out what gear oil and differential fluid I need, I'm finding that to be a challenge. Since this is a JDM trans and diff I've no idea if that will complicate things if I ask the local Subie dealer. Can I just run what you'd run in a USDM spec wrx of the era? If so, what are the OEM Subaru part numbers if anyone's got em? Thank you!