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Old 10-01-2011, 12:11 AM
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Originally Posted by brandonA.
... No matter how deep or shallow the pinion depth is or the backlash is set I get gear noise like a (Grrrr) sound every time the *same 3 or 4 gears on the pinion* are contacting the ring on the drive side.
I'm guessing you mean gear teeth, right? Does it occur when coasting, or only under power?

Why do you believe it's caused by only a few teeth?. Rhythmic vibrations can also be caused by worn or damaged roller/ball bearings. If nothing else helps, it might be worth replacing all the bearings -- carrier, pinion, axles.

When you check the tooth contact patterns, you might try checking all the teeth on both pinion and ring to see if anything looks unusual. Whatever the result, I would get in touch with Motive for their opinion.
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