OMG Metal clanking sound in reverse

[EastTXYukon]

So new problem with the 4L60E in my 96 Yukon. A metallic, rhythmical clanking sound when in reverse. Seems like the sound is louder when truck is cold. Only notice it in reverse. Any ideas? I've attached a video so you can hear, but it was dark outside. Thanks!https://vimeo.com/121209684


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[badazzbulldog]

ujoint

 

[EastTXYukon]

Maybe the video is working now. I should have been more clear but this clanking occurs even when the truck is not moving. Im not very mechanically inclined, but I think that rules out a ujoint. I wish it was something simple, but that would not be my luck.


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[EastTXYukon]

Bump and update. Noticed the clanking this morning on both reverse and forward gears. The faster I go, the less the clank is noticeable till its gone. Really loud on startup, then eventually goes away. Any ideas?


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[Keepinitoldskool]

Mine was making the same noise just before my torque converter went out.

 

[BoxerPitMix]

I had an old Chevy pickup that used to make a similar noise... It was also the torque converter.

 

[98_k1500]

Torque converter or flex plate bolts one.

 

[rosco]

Like has been said, could be the torque converter and/or flexplate. Heard a similar noise in my old Malibu, turned out to be a cracked flex plate. It caused the torque converter to wobble so bad that it now needs to be replaced.