what are you guys doing that causes you to burn up diffs every other day? i have run almost a gallon and a half thru my cv-r so far with the stock rtr differentials and havent had a problem yet(knock on wood), all i did was shim them and pack them full of grease. And i havent been easy on it by any means, i have bashed it at the track, skatepark, and straight asphault. guess it was my turn for a little good luck