I still have my 2010 RTS SM5 but have not posted on here in forever. It is time to rebuild my clutch slave cylinder. I have a Barnett clutch pack and have had the clutch ass`y apart at least 5 times but not for a long time. The 1st nut that must be removed after the inspection cover is removed, the one you have to stick the 5mm allen key in will not break loose. I am afraid if I use any more force I will strip the inner 5mm key way out. Has anyone had this problem and if so what did you do?