Taking off the winter tires, giving everything a good check noticed a large hole in the front diver side plastic wheel well. Not sure how it happened, but his cold winter has done strange things.
Bought it off eBay, price was good, $31.20 delivered. Came smooshed in a box, got it out let it sit for a day to expand back to its original shape.
Video of the removal and installation:
https://www.youtube.com/watch?v=M0kT2lF-lmQ
Things learned. The Wheel well liner was put on before the body trim plastic cladding, so removal and installation of the plastic wheel well liner requires steps to work around issues with items being in the wrong order. The front mudflap bolts were rusted into place, I was able to reuse the one in this repair. For some, the backing plate and bolts may need replaced, something to consider when ordering the new liner. The plastic push pins were fragile and fell apart. Found Dorman part # 963-231 was a suitable replacement for the wheel well liner plastic clips. Paid $2.99 for two. Coat your hardware with anti-seize or other compound prior to re-installation, they will go in a lot easier and hopefully come back out if future repair is needed.
If you have mudflaps, consider using #12 x 1 1/4" Stainless screws and washers to re-attach mudflap. The OEM hardware was not long enough to secure the flap, it was only in about one turn, now its threaded all the way in.
Bought the replacement front driver fender well liner, GM Part number: GM1248130