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02-06-2010 12:15 AM  8 years agoPost 1
WLJ

rrNovice

Eastern N.C.

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I've just bought 3 different T-rex 450s. The pinions on the motors don't appear to fit the main gears. Teeth don't mesh very good. Is there more than one cut on pinion teeth?

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02-06-2010 01:12 AM  8 years agoPost 2
Heli 770

rrProfessor

USA.

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They could be pitch gears instad of the metric mod 0.50 that you need.

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