New gear box lasted 10 min

New gear box lasted 10 min which is about 5 min longer than the original set that came with the car. Bought the car for my son for Christmas....lasted 5 min before it stopped working. Finally had the time to fix it and realized that it was the gear box I needed to replace. Ordered this new set....after taking the time to replace it on the car....my son took it out to play and within 10 min stripped the gears again. He was not using reverse to stop the car either. He was simply driving around the yard on grass and after a few hard turns you could hear the motor spinning and see the car go nowhere. As many have said....they need to upgrade these gear boxes to handle the power of the motor.

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