180 dollar belt, yes, that would be the 1115 belt. LOL. That belt should last a long time, 3400 miles on my first one. My buddy was dealing with some issues on his 900 RMK, at one point, while we were climbing a small hill in deep snow, he was so pissed 'cause the belt was slipping, he just pinned it. He had so much belt smoke coming out from under the hood it looked like a car doing a burnout. LOL. The sheaves got so hot, they cracked! He ran that belt (1115) for the rest of that winter, and all of last winter. He just replaced it this season.
That sled should have 10-58's in it, if still set up from the factory. 8400 isn't too bad, you a little over peak HP, but not by too much. Stock helix should be a 56/42/36, if you run the 07 Switchback helix (62/42/36) it will pull much harder out of the hole, and still have a great back shift.