I have a set of 4 304 stainless wheel guards that measure 16.5" across. They will work great for protecting your CTIS lines. I had this set then got rid of the truck that I was going to use them on and my current truck has 17" rims so they won't work.... They are balanced well and haven't had any issues at hwy speeds.... They have stand offs welded to the back sides of them so that they will mount flush with your geared hub (similar to the stock CTIS sheilds).... The pic attached is of the back side of one of the covers zip tied to another one just so I can store them.... Being stainless they will not rust
asking $400 for the set