Loud noises from driver's side rear end on potholes

All, I'm hearing/feeling a significant thump from the rear left of the vehicle going over potholes.

I'm on an OME suspension. I've upgraded to wheelers superbumps hoping it was the bump stop but the issue remains.

I've attached videos, you can hear it at about a second. I know the video isn't great in showing the wheel vs wheel well but you can tell it isn't that significant of a pothole.

https://vimeo.com/350641314

https://vimeo.com/35065085

I've emptied the canopy and dropped the spare and the noise still occurs.

 

Still perplexed.

Emptied and tightened the canopy
Dropped the spare
Sliders aren't loose
Dakars, nitrochargers and ubolts all look good
Bed bolts tight

 

Just for shits and giggles check and make sure all the bed bolts are tight

 

Inner fender liners on mine are noisy as hell. The ones on the front of the rear fender well flop around all over.

 

Whoops t55 came in on wed and all tight

 

Well yes, but figuring this out still makes sense

 

I trimmed mine and put some little felt sticky pads in to fix the noises. The front portion of my driver rear was rattling around like crazy