Originally Posted by TexBiker
The silver part is just a cover panel. It's the same regardless of which tank you use.
The plastic tanks and metal tanks have slightly different profiles at the front. However, the ADV tank should use the same rubber supports as the regular metal tanks. These supports fill the gap between the tank and the cover panel / lateral trim panels up front. The part numbers for the rubber supports are:
46632324873 - Left side
46632324874 - Right side
I have two used rubbers (I know, that sounds bad, but they are in good shape) PM me if you want them. Barb