Was riding in a feild and all sudden the sled slowed down to a stop. The sled runs but when i give it throttle all it does is Rev. The clutch is still spinning and the belt is still in tact. I then discovered that i can take the secondary with my hands and spin it in either direction with the belt on. What happened? Im thinking the chain or a gear snapped in the chain case. The sled wont move just revs up. Whats your opinion? I either spun a bearing or something broke in the chaincase