Locate: Yukon XL 2500 Fender Flare

[JeepJT04]

I am trying to help a customer find these flares / Wheel opening moldings. They bolt onto the truck. They are not adhered. Hard rubber / softer plastic material.
2006 Yukon XL 2500
I have searched a lot of websites, searched google images.
CCC estimating program shows a front of a similar kind but discontinued. Cannot locate a rear of the same.
Any help is appreciated.
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[hmardown]

they almost look like factory moldings to me. could they be GM ?
hmardown

 

[JeepJT04]

Searched for them on CCC, found a related front flare. But they are discontinued and rear cannot be located in system.

 

[JeepJT04]

Finally received a call back Flare Assembly Rear Whl Opg *black 15762739 Disc, none in data base across the country.