Blazer inner fender skirt

[buckkoo]

On my 73 Buick Centurion, there is a skirt made from a rubberized type of material in sheet form, that covers the gap between the bottom of the inner fender and the frame.

I suppose this keeps road dirt, water, etc from entering the engine bay from below.

I can't seem to find this part at LMC, however, I notice that the inner fender has holes to retain the skirt, just like my Buick.

Can anyone point me to a source for this part?

Thanks!