Unit is a 2014 Wildcat Trail 700. I have a LOUD rattle coming from either under the seat or at the front of the motor. This ONLY occurs at high rpms (around 4500+) and ONLY in 2wd. My initial thought was its the carrier bearing but after reading some post on here the symptoms for that are usual a bad/loud vibration in 4wd not in 2wd. There is no vibration, and its only in 2wd at higher RPMs.

Addtional notes: during my last ride I left it in 4wd for and hour or so (just so I didnt have to hear it) when I put it back in 2wd on the way in the noise gone.