Cupooterluvr
Hardcore RCTalk User
I'm sure it's something as trivial as a loose set screw. From your description it doesn't sound like anything is broken and a spinning driveline is a classic symptom of a loose screw or missing pin.
EDIT: I rewatched the video and from the slight whistling sound it sounds like there may be a gear improperly spaced. The diffs may be shimmed wrong which would prevent proper contact.
EDIT: I rewatched the video and from the slight whistling sound it sounds like there may be a gear improperly spaced. The diffs may be shimmed wrong which would prevent proper contact.
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