[dsraven]

Sometimes I use those rubber coated clamps with the bolt hole through them. They fully encircle the tube but provide an insulated protection against the brake line tube. I bolt that to a diff cover bolt with a short stack of flat washers as a spacer for the clamp to stand off enough to clear the lip on the diff cover edge. That keeps the tube close to the shape of the diff cover so stuff can't snag the line so easily.