Creaking sound from rear of truck

I'm apologize if this has already been addressed.

I have a 2019 Tundra crew max TSS. With 11k miles. About a month ago starting hearing what sounds like a creaking coming from the rear of the truck. Only happens at slow speeds. Like when I'm at a stop sign, stop light or going through a drive thru. Sound starts when I apply the breaks. Its not a squeak from the breaks. Sound has become more consistent of late. Has anybody experienced this or know what is causing this creaking sound. Has definitely become annoying to hear.

 

get under the truck and have someone bounce up and down on the rear bumper. that will help you locate exactly where the creaking is coming from.

my guess is that it is from the leaf springs.... probably some bolts that need to be torqued down.

EDIT:
do you have the rear sway bar? if the bolts on that aren't torqued properly, that can cause some noise.