I have a cub cadet 30" hydrostatic riding lawn mower. My PTO belt kept shredding and I was able to identify that as the idler pulley being loose. Long story short, in the process of replacing the stripped bolt for the idler pulley, my 2 year old son decided to hide a crucial bolt that holds the part that the transmission belt and main belt loop around. Now the problem I am having is I can not find this bolt on diagrams or even the part that the bolt goes to. i've attached a photo of the part. I would call it a spindle/pulley but know by searching, that is the incorrect term, its the part that the transmission/pto belt and the main belt loop around. I am missing the bolt that keeps this spindle/pulley in place. I figured if i can correctly identify what cub cadet calls this part, I then can properly search for the bolt. I appreciate all the help!