Its been done in the bed, but my opinion is to really do it right, it should be removed so you can reach all sides to make sure its sealed properly. I guess if only the top needs a touch-up, you could pull the stainless and lightly sand and re-coat. Others may think differently.
Jeff
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
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