Looks like you are missing the front drive line in the 2nd pic from the bottom in post #13.
Mine is Posi too.
I have been waiting until life slows down a little bit, then I was hoping I could talk A.T. Rockdriller into measuring his grill guard, so at soem point in the future I could fab one of these beasts up.
The front of our trucks look intimidating now, but with one of these brush guards on it, I think they would look even better!
Here is his thread.
http://67-72chevytrucks.com/vboard/s...d.php?t=453161
And some pics of the grille guard. I contacted Bustin USA, and they do not have any records of the manufacturing, nor any in stock.