need some advice, running 3/8" fuel line, how to run, what to use

Hey guys...just jumping on this thread since it's related...

When going from 5/16 to 3/8 fuel line, what do you use to hold the fuel line down? Can the original hardware be used?

I looked at the brackets on the rear frame rail of my duster, and I didn't think that they can be reused because of the difference in tubing diameter. The bracket is holding down both the fuel line tubing and the gas tank breather line tubing.

I would imagine that reusing the hold-down brackets will end up with a loose breather line tube.

So I wondered what you guys did. Do it require the right size brackets to be purchased?
classic industries has a set of clips for 3/8" fro $13