GM reps- need help finding a part no.

[Nanotech Environmental]

I'm trying to source a part no and a link to the stock aluminum skid plate that goes under the oil pan on a 2006 Sierra/Silvy Ext cab 4x4. Where do I find this, or how do I search for it on GM sites? Have tried a number of places, but no luck so far.

[NARDA1]

Is either one of these what you are looking for? http://www.ebay.com/itm/1999-2006-chevy-silverado-skid-plate-drivetrain-/252979783996?hash=item3ae6c5293c:g:o4sAAOSww3tY6XsQ&vxp=mtr or http://www.ebay.com/itm/99-00-01-02-03-04-05-06-07-Chevy-Silverado-Sierra-Cadillac-Oil-Pan-Skid-Plate-/282492123512?fits=Year%3A2006%7CModel%3ASilverado+1500&hash=item41c5d7b978:g:FpEAAOSwq1JZJa84&vxp=mtr

[Nanotech Environmental]

Is either one of these what you are looking for? http://www.ebay.com/itm/1999-2006-chevy-silverado-skid-plate-drivetrain-/252979783996?hash=item3ae6c5293c:g:o4sAAOSww3tY6XsQ&vxp=mtr or http://www.ebay.com/itm/99-00-01-02-03-04-05-06-07-Chevy-Silverado-Sierra-Cadillac-Oil-Pan-Skid-Plate-/282492123512?fits=Year%3A2006%7CModel%3ASilverado+1500&hash=item41c5d7b978:g:FpEAAOSwq1JZJa84&vxp=mtr

It appears they may be. Thanks.