Clunk sound at a stop

I have a clunk sound in the rear end at a complete stop, foot on the break and in drive.
Like a sensor or somthing is telling the trans to do something at this time. Again, foot on the break and for no reason a clunk sound. Any ideas?
Its a 2008. Came with a factory biult in posi rear end.

 

Is it a moment after you stop? Could be the spare tire moving around a little.

 

No. It always happens..say 5 to 15 seconds after i stop. Just waiting for traffic or the light to change. Alomost like it changed a gear or something but it feels like from the rear end....

 

Does it do this with the AC off?

 

U-Joint?

 

Splines on the drive shaft. I lubed mine and the clunk went away.
I drive a regular cab, 4 cyl, auto, 4WD (one piece driveshaft).

 

AC on or off same thing.
U joints have minimal play...thier good.
I haven't tried lubing the splines. Ill do that and see if it helps. Thanks guys for yur thoughts on this

 

My locker dose that some times if I roll back just an inch or two

 

Turn up the radio!
Not sure if this will work?

 

Normal..... it’s the hamsters that provide the truck with power bumping into each other at a stop.

.....or could be axle wrap

 

^^This^^

 

Mine would thud after a stop. I lubed the splines and it went away. Later on I added a grease fitting to it.

 

Mine too, about 1 second after stopping, when the truck would come to a rest.

 

Yep I got it wrong has to be the hamsters

 

This.

 

Mine was doing this. Check the forum for transmission flush. I had mine flushed by Toyota of Pensacola and it not only stopped the delayed clunk from the shift, it started shifting smooth like a brand new truck.