I installed the camera today under the center marker light. I used the butyl tape and two #8x3/4" stainless steel screws for the mounting.
While I was putting my tools away I noticed my pop riveter hanging on the tool rack and was wondering if maybe using a couple of quarter inch rivets would have been a better way of securing the camera bracket. Just a thought in hindsight.
I'd like to thank both of you drrelli, and JRTJH for the advice. The camera works as expected, so I guess that's a blessing. Now I have to find a place in the truck to mount the monitor. I know, I'll have the DW hold it in her lap for me, that'll be the curse