I read through this post and wanted to share a few pics of the differences between the Falcon/Comet/Ranchero battery tray and the Mustang battery tray. In the first pic, the Mustang tray is on the left, a little dirty, and the Falcon tray is on the right with the C3DZ part number. In the second pic, if you look hard enough, the Mustang tray has runs in the paint where I assume it was dipped?? The Falcon tray looks like it might have been sprayed? Both are very heavy compared to the aftermarket pieces. The Mustang tray also shows the wider mounting holes compared to the Falcon version. The top part of the tray itself is identical.