There are two threads on this already. Go to this thread for dimensions of sheet metal. First cut it out of cardboard . Test fit make any adjustments then cut it out of galvanized sheet metal. Not sure on how thick I had it already. Paint it. Then install. I rust proofed it after with Fluid Film. Spray bottom then I removed the cubby whole inside pick up bed on side sprayed it from top side.@TheSEARCH what does your block off panel look like? Could you share some photos and details for us?
12 th post down has dimensions
https://www.mavericktruckclub.com/f...-panel-for-left-rear-underbody-opening.13177/
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