WlToys 144001 Hardened Steel Spur Gear upgrade... Almost.

In this video i attempt to use a spare hardened steel spur/main gear from my A959 in my 144001. They are the exact same teeth spacing. it is almost an identical gear.
The majority of this video is in 500% fast forward/ fast motion. But there are spots along the way where i stop and explain whats going on. its not ALL fast. I just didnt want this to end up being over an hour worth of video. i had to shrink it down..
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