So i took all my diffs out and changed fluid. I removed everything from the inside of the cup, cleaned it off and put it back. I referred to the arrma manual with how much to fill them to. They all seemed good. I spun them around a few times to let the oil work around and they spun when i put the ring gear back on nicely. I put them all back in and i set it on the ground and give it a push....the wheel were locked. Turned it on and it did this
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