o4cOb|2a said:FWIW, I'm running a 76" gatorback with 2.76 2lb lower and 100mm idler, rest of idlers are stock. It's a damn tight fit. Maybe try a 76" or 76.5" since you don't have a aux idler? I'm not sure how big of a difference there is between the 2.8 and 2.76 I'm guessing not much. Just a starting point.