I'm trying to figure out what's different that make them more rigid also.

The inner fender skirt may be of a heavier gauge steel? Maybe bent in a manner that it's structural?

They claim you can use the inner fender skirts with the oem rad support with "minor" trimming.

I've seen the same product in a few other catalogs also. I can't really see what's improved.

Last edited by Whitedog; 04/26/2014 5:51 AM.

1954 3600 Chevy Truck
"The Fake Truck"
In the Stovebolt Gallery
More pix on Photobucket