Noises from undercarriage

Truck is having a weird noise on low speed on smooth roads almost like 2 knives clanging together or 2 pieces of metal rubbing against each other another way to describe it is it sounds as if I’m going over a loose sewer cap on the road. the truck had the u bolts changed as well as both leaf springs rear differential and drive shaft due to a crash. Have had no luck with mechanic checked rear breaks all seems well here is a short clip of the noise occurring towards the end of the clip make sure sound is not muted any help appreciated thanks. https://photos.app.goo.gl/xJ74USbk7diJko1eA

 

Well if this wasn't a misleading friggin' thread title.

Was expecting some slapping and squishing noises. Nope.

Moving along....

 

For the record, I did listen to the video, so I'm not just a sarcstic fool.

That would drive me nuts too. Bushings in leafs new? Bolts torqued right?

 

Bolts are torqued doubt it would have to with leafs though as it does it even on a smooth road, I was thinking it oughta be something that is in motion while in drive as I haven’t heard it in reverse

 

Check the heat shield on the inside of the gas tank. There is a tab that often will break free and slice the boot on the drive shaft.

 

Noise has been found looks like this was inside my tire moving around hitting my rim lol broken sensor thanks for the help