I was just running the MASH out in some pretty harsh slush and a smooth snowy road, it was going about 20 mph on the road then it kinda just blew out and started clicking. I thought the pinion came loose from the spur or ate through the spur but its not that. k its the slipper clutch I think but how could that have came loose and by that much out of nowhere? and if it isnt the slipper clutch what else could it be? and how do I go about fixing this because i want to get out for another run within he next few hours at least. thanks.