This 6 speed chirp thing s#@cks... I put it in gear and went under while the kid trie to push it back and forth..We can duplicate the chirp sound.... It seems to be around the front drive shaft where it goes into t-case.... Others try this method and see if you can narrow it down...... Just remember to put into gear motor off or it might hurt!!!

 

Mine does this as well, cant really hear it, unless I am going slow, radio off, and its loudest when shifting from 2nd to 3rd (happens from 1st to 2nd as well), quick squeak, then gone. Im assuming that its the hydraulic slave cylinder we are hearing (as its immediatly evident after letting the clutch out), or something to do with the drive by wire system. I listened to it twice, for about 20 minutes at a time, I dont really think its something to worry about.