Brand new Auburn Limited Slip, something missing?

......brand new newer opened............
Hmmm..............brand new newer open box or open end?


Is there any chanche to buy these preload springs and spring retainer? any partnumber I should search for?

No guarantees........
http://aftermarket.auburngear.com/gm-7-5-7-5-8-diff-service-kit-2298.html