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How to Lock a diff on a rock crawler RC vehicle

This video tutorial shows how to lock a diff on a rock crawler. Just a little bit of epoxy glue will weld the diff into place. Watch and learn how to fix a diff on a rock crawler RC vehicle into a permanent position.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.

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