so i was driving home and did a spirited exit out of the corner and heard a lound pop/clunk sound from the rear (everything seemed fine car was driving fine) however on i went to 3rd gear accelerated a bit and let go of the throttle and heard a clunking sound like something rubbing, seems like its coming from the rear but not sure and only happens on decel and if clutch is fully out. All gears seem to be working fine and shifting smooth. so im wondering what it is and if anyone has run into this in the past. Having a read only its either the drive-train or the differential however no definitive answer so looking to you guys.

Thanks in advance.