u/Bulepotann

Just got into a ‘22 frontier. The bed was used quite a lot to say the least and has dents and some surface rust in spots where the paint was stripped. Likely from hauling and having rock dumped in the back. No OEM bed liner.

Question is have any of you installed a bed liner afterwards and am I clear to try and beat the dents out from underneath then lightly grind out the rust? Thinking about it, I feel it might be better to get a shop to do it since I’m worried if I’d seal it correctly before tacking on the bed liner. Would love to know what yall think.