Tony,
You mean the one closest to the door?
I'm not sure if its stock, but I think that is the one that has a screwhead that is visible, the rest of the bolts are hidden in 'rail' on backside of trim. I am guessing due to the lack of access to turn a wrench in there, as you indicated. I was able to get a wrench on the nut though (it is also down in the body with the new ones /bcforum/images/%%GRAEMLIN_URL%%/rolleyes.gif ..see below!)
There is a trick to putting them back on...
Take the wrench (3/16" or 1/4" I think?) and place a piece of duct tape over one side of the box end to create a 'bucket' for the nut to sit in and carefully manuver into place...no, I haven't figured out how to get a lock washer on it yet! /bcforum/images/%%GRAEMLIN_URL%%/wink.gif I have removed the old flat aluminum ones..and re-installed an incorrect one...I think there are now 2 nuts down in the body somewhere! (before the duct tape idea!)
Did the same thing to get my new top snap studs on ..ugh those were harder than the trim I think.
If you come across a pair of these trim pieces..please keep me in mind!! I don't want to come to the Ozarks without trim!!
I'll be sending you a parts list soon..for small misc bits and pieces.
Have fun!
Devin