Yeah, we kind of high jacked the thread for the gearing options. :lol:havent the stock is300 diff been proven to handle 1000hp. i know vitsbits did 1100 on stock diff but i think it finally gave out. Mo did over 1k hp on stock is300 diff and axles. you just need to install os giken diff in there and youll be set
Stock can definitely handle some serious power. Just limited on gearing.