HELP!!! WTF is this noise? HELP!!!

Drove home tonight and heard this, it only happens when decelerating and this is the first it has ever occurred. 2004 V6 Supercharged URD 7th Auto.

 

Is it that chirping ?? Dont really know shit about S/C but it doesn't sound good & it does sound S/C related maybe...

 

I could barely hear it but I've seen posts about a "chirping" meaning you may need to rebuild the S/C or nose of it at least. Could also be pulley? not sure myself as I don't have one

 

Thanks guys,

I thought it could be the SC but since I pulled over and revved the engine and there was no noise. it is only when the truck is in motion and decelerating.

I am going to bring it to my local shop tomorrow am and I will post the results.

Q.

 

Started her up this morning, no noise no problem, took her to the shop, test drive with the mechanics, nothing.

Hopefully it doesn't happen again.

 

Update.

It was my driveshaft, I used to heavy of a grease, replaced with the correct grease and no noise since.

 

Haha, wow from super charger narrowed down to driveshaft.. glad you got it figured out tho'....