I needed a complete set of bearings for an LR3 rear locking diff. Rockauuto only had 1 of 8 part numbers needed available. Ordered, processed, 3 days later, they discover the part is on a national back order until November. Not their fault, but it would have been nice to know this sooner than later. Now the entire diff is apart, the car is disabled and I'm down to trying to find 1 bearing race to put this back together.