dooghssr wroteMine does not have the bracket by the valve cover. That is why it broke. It was loose and just bouncing around.
The "bracket" is not part of the dipstick tube, it is a loose piece with a hole in it that the tube goes thru. You could probably make one very easily, just a short piece of flat bar stock, with 2 holes in it, one for the tube, and one for a valve cover bolt. I highly recommend using one so you don't end up breaking another tube.