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Wellllllll-----
There are gear sets that have been made that are non hunting and should be installed correctly--However, these gears are in the smaller ratios and only happen with simole numbers--that is a ratio that is a number that when you devide the number of ring gear teeth by the number of pinion teeth you won't have a fraction or remainder---4.10---41 ring gear teeth, 10 pinion teeth is one commonly used ratio that fits this scenerio--a 4.11 does not--
the present day gears you buy may not be marked as to which teeth you mesh together, but on those the same teeth is touched each revelution by the same pinion teeth---
The other ratios that don't devide out to a whole number will eventially touch every tooth with every tooth on the pinion---So, it is a fact that these hunting gear sets will outlast a non-hunting ratio if a tooth is broken off, but its over when its over.
Back in the 40s,50s,60s it was vital to mesh the paired teeth when setting up a gear set or you would have noise, tight spots and looser spots--with the lower set pinions it became more important to set the depth of the gear along with the backlash and the manufacturers started the lapping and matching of gear sets----
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