Quote:
Originally Posted by NoMoGMPG
Technically yes, but it would make noise, and alot of it, long before it would sharpen the teeth to the point of fracture. Normal backlash is .005-.009", someone posted here that their's were measured at .022" with the lapping compound issue. But that brings an interesting variable as excessive backlash could break teeth under a heavy shock load, maybe I need to re-think my position. 
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You probably know more than I do in regard to this area; but I'm learning fast.
As for Bebe's her failure was not due to excessive backlash or lapping compound. The only real lapping compound problems I have heard of are the early rear axles, and not all were affected. And, as you state, the noise gets people in at around 3-4K.