Does anyone know the part number do the clutch shoes or "gear friction" as it says in the manual? The lining came off one of my shoes and I can't find a listing anywhere. Searched all over the net. I bought an HPI 8000rpm clutch but don't have the 9mm screws to hold it on. Maybe a part number to those. All over HPI's site they don't list the screws in the pars section.