Rok-blok why didn't I think of that?
 

I was looking for a tailgate seal to go with my Bak-Flip HD and ran accross this. Stupidly simple and I've needed something like this for years.

I've bent up a couple tailgates by slamming them shut, not realizing that there was a big rock or chunk of brush between the bed and tailgate.
http://extrudedsolutions.com/products/rok-blok.htm

That is a good solution. I have the bed rug that kinda does the same thing it is attached to the tailgate and it blocks stuff from falling into the crevice.

AWESOME! Can't believe I've never heard of this. I'm definitely getting some. I hate it when rocks or other crap like mulch gets in there.

Anyone know if it or something similar can be found for less somewhere else? Not like $25 is a lot of money, but if I can save a few bucks it's still a few $$ saved.