It didn't fit and there did not appear to be any way to modify it. Had to order a stock servo off ebay while horizon is repairing the other stock one. I just stripped the rear diffs so it doesn't really matter right now:( Super bummed.
I just ordered the savox SW-0240MG. I am hoping it fits. The stock S904 failed after 2 sessions. Horizon hobbies site says that the stock servo is back ordered and should be shipping early August. So I might have a $550 paperweight for a few months. Such BS. It can sit next to my rustler that...