i think there is a tiny person sitting under my tahoe shaking a set of Mexican maracas as I drive! I noticed it In February but parked it and started on the interior. Now I hav been driving it to work lately and it’s worse by the day. Any of you have that same problem? I’m almost certain it’s coming from the transfer case. I already bought a replacement just haven’t put it in. Last night I was messing with it trying to find out what the hell it is because it’s driving me crazy and if you put it in four low it's really loud! Have any of you had this problem with yours before?