Looks just like several I've done. Even had the shaft worn down on a '06. Haven't run across a messed up bolt like that.I would like to add to the advice about the primary shaft failure. I have an 2004 with the familiar deiseling sound which I improved the sound by working moly grease around the primary adaptor spline. But after doing a tour round France clocking some big mileage totals and started to notice the sound had changed. a few hundred miles later the pimary shaft spline had stripped. After stripping out cvt I found the the primary adapter spline was slightly worn but I could see the problem had been caused by the bearing seizing on the primary shaft reducing the diameter of the shaft allowing for oscilation to occur resulting in excess wear. So my advice is to take out the primary adapter gear regulary and check for any sign of wear on the inner cog. On the 2003/4 model there is a redisigned primary adapter gear from a guy in poland as refered to in previous threads, I would recomend this part as I just refitted one and it is machined perfectly to size and one post has said that many thousands of miles later was still in perfect working order. So when you have the loud deiseling noise do the modification it could save you a cople of thousand dollars.