Transmission noises - bearings or ??

I recently purchased a 2008 Tacoma regular cab 4x4 with 2.7 and 5 speed transmission. Something is making a rattling noise within the transmission area and after reading through some old threads, I'm having a hard time pinning it down.

Everything that has been posted about the "diesel" noise has been at idle. Mine doesn't do it at idle, only between 1500-2000 rpm and only when I let off the throttle or hold the throttle steady. It does not happen during acceleration.

Another thing that is different from other members is that once I drive about 5-6 miles, the rattle pretty much goes away. I guess once the oil in the transmission is warmed up, it alleviates whatever is rattling in there.

I took a short video to show what I'm talking about. The noises start at about 7 seconds in. Towards the end of the video, I hold the throttle steady and it makes the noise constantly.
https://www.youtube.com/watch?v=PnFq2jaSlHw&feature=em-upload_owner

Let me know what you guys think. The truck has 145k miles and the clutch seems to be ok. I get some chatter on cold starts, but it's not that bad. The only reason I would replace it at this point is if one of the bearings that is normally changed with the clutch would eliminate the noises it causing.

 

Almost sounds like the exhaust pipe is rubbing up against your frame
https://www.tacomaworld.com/threads...on-your-5-speed-transmission-write-up.338836/

 

I don't think it's the exhaust rubbing because the noise will wind down when I press the clutch in to shift.

 

Throw out bearing

 

Can't tell anything from a video, but FWIW: There is a recall on the catalytic converter for rattling.

 

Thanks for the info on the recall. I did a quick search and it looks like its for 2010-2014.

Anyone else have any input on the noise? Would a throw out bearing get quiet after I drive it a few miles and the trans oil heats up?

 

If had some odd issues with my tranny, and did a full flush, and the problems went away.

Although I have the A/T if you suspect it might be something within the transmission maybe look into doing a fluid flush.