I think i have a 97 JDM Type R tranny and i just bought a quaife diff. I know that i need to use gsr bearings but when i called the acura dealer they said theres to bearings and that they need my engine serial number but i dont have one. Anyone know which bearings i need? Which of the two that are for gsr's? And also do i need Shims? please help i cant figure this out.