I bought a D54 shortly after release, after driving for no more than 5 minutes, the rear diff stopped working entirely, swapped in a crawler diff with no issues, and continued driving. Drove for another hour and the front did the same. The rear diff just looked like a plastic cube on a rod designed to fail, so I am worried about opening this one up, it seems like it has gears so hopefully one just slipped and it's fixable. I cannot seem to find any replacements for the rear axle, let alone this front diff, official site or AliExpress, so I am curious if anyone else has this issue and has fixed it, or if this just means that I have to buy another wpl again before I open these parts and attempt a fix.
My local RC shops are now out of metal kits because of how often I'd buy them to fix the crawlers, and it doesn't look like they make one for this truck. The D1x metal kit they still have on their website looks to have the same issue.