By belly band, are you referring to the 1" chrome plastic rub rail that sits in an aluminum track that visually divides the bottom of the aluminum side panels from the belly pan and encircles the trailer? If so, the rub rail is attached with 3M type peel and stick automotive mounting tape. :-( If moisture and grit gets under it, it starts to separate and at 60 mph it turns to gas, never to be seen again! There is a 3/4" rub rail that also encircles the trailer midway up the side.
I found auto parts and trim stores carry this product but not in these dimensions!!!
Andy sells the correct sizes by the foot, and you can order either chrome or black. I thoroughly cleaned the track with alcohol before replacing these strips. My problem was on the stone guards. That area probably gets an intense dose of road spray. If it happens again, I'm inclined to tack the ends down with a pop rivet unless someone else has a better solution.
Air Safe Hitch, Reese Dual Cam 800#, Centramatics