I mounted my stebel using an old piece 2x2 steel angle cut about 1.5" wide.
I shaped the side that attached to the top of the horn in a semi-circle to match the body of the horn and fit closer to the angle of the bracket- then attached the vertical angle to the bolt that holds the left side of the radiator - worked out well so far - I used a little blue loctite on the radiator bolt, and could probably use a slightly longer radiator bolt but there seem to be plenty of threads holding it.
Had to do a little carving on the other side of the angle to fit around the radiator but it was no biggy.
05 DL-1000 - A farkling project in the making....
"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.” – George Washington