8.75 question

gear cutting is all automated so the theory the gear was cut wrong is probably a very long shot. Also the gear and pinion will have a matching stamp or mark on it as well as a shim pack measurement. Its usually engraved with a pen and may look like its hand written. I had 2 sets US gear and some other make and they both had matching marks on hem as well as a .*** number. when the races are pressed in, the case must be absolutely clean in the race bosses. It would show as a drag on the pinion as its turned with no load. Can't argue with AJ on this, he probably has more experience in this than anyone besides his co-workers.