The only issues i have had with mine is the stock servo arms are really easy to strip (modded a graphite hitec stock one to fit) and i blew out all the inner gears in the tranny, not a problem with the gears though, lost the oring that holds the pin in the top gear and the pin demolished everything else including the diff gear. I havent run 2wd buggy since the original jrx2 but ive seen the b4's at my track breaking alot of stuff, i ordered a massive amount of spares since no shop within 12hr drive has anything and ..... havent used anything.
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